keycloak: Keycloak: Privilege escalation via Time-of-Check to Time-of-Use (TOCTOU) vulnerability

cve CVE-2026-9796 2 sources, 2 claims · Watch

Red Hat writes:
keycloak: Keycloak: Privilege escalation via Time-of-Check to Time-of-Use (TOCTOU) vulnerability the claim

Severity: MEDIUM NVD
moderate Red Hat
CVSS: 6.5 NVD
6.5 Red Hat
Vendor: Red Hat NVD
Product: Red Hat build of Keycloak 26.6 NVD
CWE: CWE-367 NVD
CWE-367 Red Hat

How far exploitation has got

No public code known
Proof of concept
Proof of concept, verified
A Metasploit module
Exploited in the wild
Used in ransomware campaigns

Timeline

2026-05-28	first spoke of it: A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots.	NVD
2026-05-28	first spoke of it: keycloak: Keycloak: Privilege escalation via Time-of-Check to Time-of-Use (TOCTOU) vulnerability	Red Hat

What it is to other things

affects	redhat/build_of_keycloak NVD
made_by	redhat NVD

In words only, so not counted until a person confirms one:

made_by	`red_hat` NVD says “Red Hat”
affects	`red_hat/red_hat_build_of_keycloak_26_6` NVD says “Red Hat · Red Hat build of Keycloak 26.6”

Every value, with what each source said and its receipt

Property Source Said Means here

Automatable

automatable

NVD

At least one of those steps needs a person.

receipt

Source: NVD
Its words: no
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].automatable
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	no
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

NVD

6.5

receipt

Source: NVD
Its words: 6.5
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

Red Hat

6.5

receipt

Source: Red Hat
Its words: 6.5
Read by: field:cvss3_score
Said since: 2026-09-29 09:44 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-9796",
  "CWE": "CWE-367",
  "advisories": [
    "RHSA-2026:56524",
    "RHSA-2026:56523"
  ],
  "affected_packages": [
    "rhbk/keycloak-rhel9:26.6-12",
    "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
    "rhbk/keycloak-operator-bundle:26.6.6-1",
    "rhbk/keycloak-rhel9-operator:26.6-12"
  ],
  "bugzilla": "2482464",
  "bugzilla_description": "keycloak: Keycloak: Privilege escalation via Time-of-Check to Time-of-Use (TOCTOU) vulnerability",
  "cvss3_score": "6.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-05-28T03:32:50Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-9796.json",
  "severity": "moderate"
}

—

CVSS vector

cvss_vector

NVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

receipt

Source: NVD
Its words: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

Red Hat

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

receipt

Source: Red Hat
Its words: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Read by: field:cvss3_scoring_vector
Said since: 2026-10-06 13:01 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

2026-10-06 13:01 UTC	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
2026-09-29 09:44 UTC	—

What the source handed over

{
  "CVE": "CVE-2026-9796",
  "CWE": "CWE-367",
  "advisories": [
    "RHSA-2026:56524",
    "RHSA-2026:56523"
  ],
  "affected_packages": [
    "rhbk/keycloak-rhel9:26.6-12",
    "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
    "rhbk/keycloak-operator-bundle:26.6.6-1",
    "rhbk/keycloak-rhel9-operator:26.6-12"
  ],
  "bugzilla": "2482464",
  "bugzilla_description": "keycloak: Keycloak: Privilege escalation via Time-of-Check to Time-of-Use (TOCTOU) vulnerability",
  "cvss3_score": "6.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-05-28T03:32:50Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-9796.json",
  "severity": "moderate"
}

—

CWE

cwe

NVD

CWE-367

receipt

Source: NVD
Its words: CWE-367
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CWE-367
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

Red Hat

CWE-367

receipt

Source: Red Hat
Its words: CWE-367
Read by: field:CWE
Said since: 2026-09-29 09:44 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-9796",
  "CWE": "CWE-367",
  "advisories": [
    "RHSA-2026:56524",
    "RHSA-2026:56523"
  ],
  "affected_packages": [
    "rhbk/keycloak-rhel9:26.6-12",
    "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
    "rhbk/keycloak-operator-bundle:26.6.6-1",
    "rhbk/keycloak-rhel9-operator:26.6-12"
  ],
  "bugzilla": "2482464",
  "bugzilla_description": "keycloak: Keycloak: Privilege escalation via Time-of-Check to Time-of-Use (TOCTOU) vulnerability",
  "cvss3_score": "6.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-05-28T03:32:50Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-9796.json",
  "severity": "moderate"
}

—

Exploitation

exploitation

NVD

none

No evidence of exploitation, and no public proof of concept.

receipt

Source: NVD
Its words: none
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].exploitation
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	none
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Packages

packages

Red Hat

rhbk/keycloak-rhel9:26.6-12, rhbk-keycloak-rhel9/rhbk-keycloak-rhel9, rhbk/keycloak-operator-bundle:26.6.6-1, rhbk/keycloak-rhel9-operator:26.6-12

receipt

Source: Red Hat
Its words: rhbk/keycloak-rhel9:26.6-12, rhbk-keycloak-rhel9/rhbk-keycloak-rhel9, rhbk/keycloak-operator-bundle:26.6.6-1, rhbk/keycloak-rhel9-operator:26.6-12
Read by: field:affected_packages[]
Said since: 2026-09-29 09:44 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-9796",
  "CWE": "CWE-367",
  "advisories": [
    "RHSA-2026:56524",
    "RHSA-2026:56523"
  ],
  "affected_packages": [
    "rhbk/keycloak-rhel9:26.6-12",
    "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
    "rhbk/keycloak-operator-bundle:26.6.6-1",
    "rhbk/keycloak-rhel9-operator:26.6-12"
  ],
  "bugzilla": "2482464",
  "bugzilla_description": "keycloak: Keycloak: Privilege escalation via Time-of-Check to Time-of-Use (TOCTOU) vulnerability",
  "cvss3_score": "6.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-05-28T03:32:50Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-9796.json",
  "severity": "moderate"
}

—

Product

product

NVD

Red Hat build of Keycloak 26.6

receipt

Source: NVD
Its words: Red Hat build of Keycloak 26.6
Read by: field:cve.affected[].affectedData[].product
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	Red Hat build of Keycloak 26.6
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Severity

severity

NVD

MEDIUM

From 4.0 to 6.9.

receipt

Source: NVD
Its words: MEDIUM
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	MEDIUM
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

medium

Severity

severity

Red Hat

moderate

A flaw that is harder to exploit, or whose impact is limited.

receipt

Source: Red Hat
Its words: moderate
Read by: field:severity
Said since: 2026-09-29 09:44 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-9796",
  "CWE": "CWE-367",
  "advisories": [
    "RHSA-2026:56524",
    "RHSA-2026:56523"
  ],
  "affected_packages": [
    "rhbk/keycloak-rhel9:26.6-12",
    "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
    "rhbk/keycloak-operator-bundle:26.6.6-1",
    "rhbk/keycloak-rhel9-operator:26.6-12"
  ],
  "bugzilla": "2482464",
  "bugzilla_description": "keycloak: Keycloak: Privilege escalation via Time-of-Check to Time-of-Use (TOCTOU) vulnerability",
  "cvss3_score": "6.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-05-28T03:32:50Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-9796.json",
  "severity": "moderate"
}

medium

Status

status

NVD

Modified

receipt

Source: NVD
Its words: Modified
Read by: field:cve.vulnStatus
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Technical impact

technical_impact

NVD

partial

The attacker gains limited control, or limited information.

receipt

Source: NVD
Its words: partial
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	partial
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Vendor

vendor

NVD

Red Hat

receipt

Source: NVD
Its words: Red Hat
Read by: field:cve.affected[].affectedData[].vendor
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	Red Hat
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat Build of Keycloak",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*",
                "matchCriteriaId": "E5C930CB-4EAD-497B-A44B-D880F2A1F85B",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots."
      }
    ],
    "id": "CVE-2026-9796",
    "lastModified": "2026-09-15T12:17:55.960",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-9796",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-28T12:16:43.517458Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-28T05:16:41.153",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-9796"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482464"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-367"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

keycloak: Keycloak: Privilege escalation via Time-of-Check to Time-of-Use (TOCTOU) vulnerability zetlyn/cve-redhat · 2026-05-28	cvss 6.5 cvss_vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N cwe CWE-367 packages rhbk/keycloak-rhel9:26.6-12, rhbk-keycloak-rhel9/rhbk-keycloak-rhel9, rhbk/keycloak-operator-bundle:26.6.6-1, rhbk/keycloak-rhel9-operator:26.6-12 severity moderate	source
A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots. zetlyn/cve-nvd · 2026-05-28	automatable no cvss 6.5 cvss_vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N cwe CWE-367 exploitation none product Red Hat build of Keycloak 26.6 severity MEDIUM status Modified technical_impact partial vendor Red Hat	source