chromium-browser: chromium-browser: Incorrect authorization in Core

cve CVE-2026-91734 2 sources, 2 claims · Watch

Red Hat writes:
chromium-browser: chromium-browser: Incorrect authorization in Core the claim

Severity: HIGH NVD
important Red Hat
CVSS they disagree: 7.4 NVD
8.8 Red Hat
Fixed in: 153.0.8010.47 NVD
Vendor: Google NVD
Product: Chrome NVD
CWE: CWE-863 NVD
CWE-551 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

Why the CVSS differs

Metric	NVD	Red Hat
Attack vector AV	local L	local L
Attack complexity AC	high H	low L
Privileges required PR	none N	low L
User interaction UI	none N	none N
Scope S	unchanged U	changed C
Confidentiality C	high H	high H
Integrity I	high H	high H
Availability A	high H	high H

Each source scores the same vulnerability from what it judges the attack to need. The rows marked are where they judge it differently.

Timeline

2026-09-15	first spoke of it: Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)	NVD
2026-09-15	first spoke of it: chromium-browser: chromium-browser: Incorrect authorization in Core	Red Hat

What it is to other things

affects	google/chrome NVD
affects	microsoft/windows NVD
made_by	google NVD
made_by	microsoft NVD

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 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	no
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
                "lessThan": "153.0.8010.47",
                "status": "affected",
                "version": "153.0.8010.47",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "chrome-cve-admin@google.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "9AA53785-BCDB-4CB8-9F0F-D3E79F00D9C3",
                "versionEndExcluding": "153.0.8010.47",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          },
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
                "vulnerable": false
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ],
        "operator": "AND"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)"
      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.4,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-91734",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-15T21:16:46.900",
    "references": [
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html"
      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-863"
          }
        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

conflict

NVD

7.4

receipt

Source: NVD
Its words: 7.4
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": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
                "lessThan": "153.0.8010.47",
                "status": "affected",
                "version": "153.0.8010.47",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "chrome-cve-admin@google.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "9AA53785-BCDB-4CB8-9F0F-D3E79F00D9C3",
                "versionEndExcluding": "153.0.8010.47",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          },
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
                "vulnerable": false
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ],
        "operator": "AND"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)"
      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.4,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-91734",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-15T21:16:46.900",
    "references": [
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html"
      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-863"
          }
        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

conflict

Red Hat

8.8

receipt

Source: Red Hat
Its words: 8.8
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-2026-91734",
  "CWE": "CWE-551",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2534571",
  "bugzilla_description": "chromium-browser: chromium-browser: Incorrect authorization in Core",
  "cvss3_score": "8.8",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-15T20:41:27Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-91734.json",
  "severity": "important"
}

—

CVSS vector

cvss_vector

not compared

NVD

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

receipt

Source: NVD
Its words: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
                "lessThan": "153.0.8010.47",
                "status": "affected",
                "version": "153.0.8010.47",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "chrome-cve-admin@google.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "9AA53785-BCDB-4CB8-9F0F-D3E79F00D9C3",
                "versionEndExcluding": "153.0.8010.47",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          },
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
                "vulnerable": false
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ],
        "operator": "AND"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)"
      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.4,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-91734",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-15T21:16:46.900",
    "references": [
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html"
      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-863"
          }
        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

not compared

Red Hat

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

receipt

Source: Red Hat
Its words: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
2026-09-29 09:44 UTC	—

What the source handed over

{
  "CVE": "CVE-2026-91734",
  "CWE": "CWE-551",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2534571",
  "bugzilla_description": "chromium-browser: chromium-browser: Incorrect authorization in Core",
  "cvss3_score": "8.8",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-15T20:41:27Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-91734.json",
  "severity": "important"
}

—

CWE

cwe

different words

NVD

CWE-863

receipt

Source: NVD
Its words: CWE-863
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CWE-863
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
                "lessThan": "153.0.8010.47",
                "status": "affected",
                "version": "153.0.8010.47",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "chrome-cve-admin@google.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "9AA53785-BCDB-4CB8-9F0F-D3E79F00D9C3",
                "versionEndExcluding": "153.0.8010.47",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          },
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
                "vulnerable": false
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ],
        "operator": "AND"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)"
      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.4,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-91734",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-15T21:16:46.900",
    "references": [
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html"
      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-863"
          }
        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

different words

Red Hat

CWE-551

receipt

Source: Red Hat
Its words: CWE-551
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-2026-91734",
  "CWE": "CWE-551",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2534571",
  "bugzilla_description": "chromium-browser: chromium-browser: Incorrect authorization in Core",
  "cvss3_score": "8.8",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-15T20:41:27Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-91734.json",
  "severity": "important"
}

—

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 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	none
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
                "lessThan": "153.0.8010.47",
                "status": "affected",
                "version": "153.0.8010.47",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "chrome-cve-admin@google.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
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                "matchCriteriaId": "9AA53785-BCDB-4CB8-9F0F-D3E79F00D9C3",
                "versionEndExcluding": "153.0.8010.47",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          },
          {
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                "vulnerable": false
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ],
        "operator": "AND"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
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      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
        {
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
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    },
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      {
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        ],
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      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-863"
          }
        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Fixed in

fixed_in

NVD

153.0.8010.47

receipt

Source: NVD
Its words: 153.0.8010.47
Read by: field:cve.affected[].affectedData[].versions[status=affected].lessThan
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	153.0.8010.47
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
                "lessThan": "153.0.8010.47",
                "status": "affected",
                "version": "153.0.8010.47",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "chrome-cve-admin@google.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
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                "versionEndExcluding": "153.0.8010.47",
                "vulnerable": true
              }
            ],
            "negate": false,
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          },
          {
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                "vulnerable": false
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ],
        "operator": "AND"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)"
      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
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            "attackVector": "LOCAL",
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.4,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-91734",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-15T21:16:46.900",
    "references": [
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html"
      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-863"
          }
        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Product

product

NVD

Chrome

receipt

Source: NVD
Its words: Chrome
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	Chrome
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
                "lessThan": "153.0.8010.47",
                "status": "affected",
                "version": "153.0.8010.47",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "chrome-cve-admin@google.com"
      }
    ],
    "configurations": [
      {
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          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "9AA53785-BCDB-4CB8-9F0F-D3E79F00D9C3",
                "versionEndExcluding": "153.0.8010.47",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          },
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            "cpeMatch": [
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                "vulnerable": false
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ],
        "operator": "AND"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)"
      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
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          },
          "exploitabilityScore": 1.4,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-91734",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-15T21:16:46.900",
    "references": [
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html"
      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-863"
          }
        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Severity

severity

NVD

HIGH

From 7.0 to 8.9.

receipt

Source: NVD
Its words: HIGH
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	HIGH
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
                "lessThan": "153.0.8010.47",
                "status": "affected",
                "version": "153.0.8010.47",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "chrome-cve-admin@google.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "9AA53785-BCDB-4CB8-9F0F-D3E79F00D9C3",
                "versionEndExcluding": "153.0.8010.47",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          },
          {
            "cpeMatch": [
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                "vulnerable": false
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ],
        "operator": "AND"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)"
      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.4,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-91734",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-15T21:16:46.900",
    "references": [
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html"
      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-863"
          }
        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

high

Severity

severity

Red Hat

important

A flaw that can easily compromise confidentiality, integrity or availability.

receipt

Source: Red Hat
Its words: important
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-2026-91734",
  "CWE": "CWE-551",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2534571",
  "bugzilla_description": "chromium-browser: chromium-browser: Incorrect authorization in Core",
  "cvss3_score": "8.8",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-15T20:41:27Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-91734.json",
  "severity": "important"
}

high

Status

status

NVD

Analyzed

receipt

Source: NVD
Its words: Analyzed
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": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
                "lessThan": "153.0.8010.47",
                "status": "affected",
                "version": "153.0.8010.47",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "chrome-cve-admin@google.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "9AA53785-BCDB-4CB8-9F0F-D3E79F00D9C3",
                "versionEndExcluding": "153.0.8010.47",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          },
          {
            "cpeMatch": [
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                "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
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                "vulnerable": false
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ],
        "operator": "AND"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)"
      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.4,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-91734",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-15T21:16:46.900",
    "references": [
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html"
      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-863"
          }
        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Technical impact

technical_impact

NVD

total

The attacker gains full control of the component, or all of its information.

receipt

Source: NVD
Its words: total
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	total
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
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    "cveTags": [],
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      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
    "metrics": {
      "cvssMetricV31": [
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          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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            "options": [
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            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-16T00:00:00+00:00",
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    "published": "2026-09-15T21:16:46.900",
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        "tags": [
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        "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html"
      },
      {
        "source": "chrome-cve-admin@google.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://issues.chromium.org/issues/516780835"
      }
    ],
    "sourceIdentifier": "chrome-cve-admin@google.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
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          {
            "lang": "en",
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        ],
        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Vendor

vendor

NVD

Google

receipt

Source: NVD
Its words: Google
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	Google
2026-09-29 09:45 UTC	—

What the source handed over

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      {
        "affectedData": [
          {
            "product": "Chrome",
            "vendor": "Google",
            "versions": [
              {
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                "status": "affected",
                "version": "153.0.8010.47",
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          }
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    "cveTags": [],
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      }
    ],
    "id": "CVE-2026-91734",
    "lastModified": "2026-09-17T16:03:41.563",
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        "source": "chrome-cve-admin@google.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

chromium-browser: chromium-browser: Incorrect authorization in Core zetlyn/cve-redhat · 2026-09-15	cvss 8.8 cvss_vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H cwe CWE-551 severity important	source
Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High) zetlyn/cve-nvd · 2026-09-15	automatable no cvss 7.4 cvss_vector CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H cwe CWE-863 exploitation none fixed_in 153.0.8010.47 product Chrome severity HIGH status Analyzed technical_impact total vendor Google	source