pki-core: dogtag-pki: redhat-pki: pki: EST fullcmc authentication bypass allows certificate mis-issuance with arbitrary subject

cve CVE-2026-104988 3 sources, 3 claims · Watch

Red Hat writes:
pki-core: dogtag-pki: redhat-pki: pki: EST fullcmc authentication bypass allows certificate mis-issuance with arbitrary subject the claim

What it is to other things

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

affectsred_hat/red_hat_certificate_system_10
NVD says “Red Hat · Red Hat Certificate System 10”
made_byred_hat
NVD says “Red Hat”

What each source says

PropertySourceSaidMeans here
Cvss
cvss
GitHub advisories8.1
receipt
Source
GitHub advisories
Its words
8.1
Read by
field:cvss.score
Said since
2026-10-03 00:02 UTC
Last answered
2026-10-04 12:14 UTC
Original
open at the source
What the source handed over
{
  "comments": 0,
  "credits": [],
  "cve_id": "CVE-2026-104988",
  "cvss": {
    "score": 8.1,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 8.1,
      "vector_string": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
    },
    "cvss_v4": {
      "score": 0.0,
      "vector_string": null
    }
  },
  "cwes": [
    {
      "cwe_id": "CWE-290",
      "name": "Authentication Bypass by Spoofing"
    }
  ],
  "description": "A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open when an EST fullcmc enrollment request is submitted via BasicAuth without an end-user TLS client certificate. The SSL_CLIENT_CERT session attribute retains the EST subsystem's agent certificate, which causes downstream authorization checks to treat the request as agent-privileged. An authenticated EST user can exploit this to obtain CA-signed certificates with arbitrary subject names.",
  "ghsa_id": "GHSA-qgmm-v3v3-wff2",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-qgmm-v3v3-wff2",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-qgmm-v3v3-wff2"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-104988"
    }
  ],
  "nvd_published_at": "2026-10-02T20:17:01Z",
  "published_at": "2026-10-02T21:32:06Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-104988",
    "https://access.redhat.com/security/cve/CVE-2026-104988",
    "https://bugzilla.redhat.com/show_bug.cgi?id=2545316",
    "https://github.com/advisories/GHSA-qgmm-v3v3-wff2"
  ],
  "repository_advisory_url": null,
  "severity": "high",
  "source_code_location": "",
  "summary": "A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open...",
  "type": "unreviewed",
  "updated_at": "2026-10-02T21:32:18Z",
  "url": "https://api.github.com/advisories/GHSA-qgmm-v3v3-wff2",
  "vulnerabilities": [],
  "withdrawn_at": null
}
—
Cvss
cvss
NVD8.1
receipt
Source
NVD
Its words
8.1
Read by
field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since
2026-10-03 00:06 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:10"
            ],
            "defaultStatus": "affected",
            "packageName": "redhat-pki:10/redhat-pki",
            "product": "Red Hat Certificate System 10",
            "vendor": "Red Hat"
          },
          {
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            "cpes": [
              "cpe:/a:redhat:certificate_system:11"
            ],
            "defaultStatus": "affected",
            "packageName": "redhat-pki",
            "product": "Red Hat Certificate System 11",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Certificate System 9",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "redhat-pki",
            "product": "Red Hat Certificate System 9",
            "vendor": "Red Hat"
          },
          {
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          },
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            "cpes": [
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            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Enterprise Linux 6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:7"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
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            "defaultStatus": "unaffected",
            "packageName": "pki-core:10.6/pki-core",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
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            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9"
            ],
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            "packageName": "pki-core",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          }
        ],
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      }
    ],
    "cveTags": [],
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      {
        "lang": "en",
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      }
    ],
    "id": "CVE-2026-104988",
    "lastModified": "2026-10-02T20:17:01.370",
    "metrics": {
      "cvssMetricV31": [
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            "availabilityImpact": "NONE",
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
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          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Primary"
        }
      ]
    },
    "published": "2026-10-02T20:17:01.370",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/security/cve/CVE-2026-104988"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545316"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-290"
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        ],
        "source": "secalert@redhat.com",
        "type": "Primary"
      }
    ]
  }
}
—
Cvss
cvss
Red Hat8.1
receipt
Source
Red Hat
Its words
8.1
Read by
field:cvss3_score
Said since
2026-10-03 00:06 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-104988",
  "CWE": "CWE-290",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2545316",
  "bugzilla_description": "pki-core: dogtag-pki: redhat-pki: pki: EST fullcmc authentication bypass allows certificate mis-issuance with arbitrary subject",
  "cvss3_score": "8.1",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-10-02T19:04:41Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-104988.json",
  "severity": "important"
}
—
Cwe
cwe
GitHub advisoriesCWE-290
receipt
Source
GitHub advisories
Its words
CWE-290
Read by
field:cwes[].cwe_id
Said since
2026-10-03 00:02 UTC
Last answered
2026-10-04 12:14 UTC
Original
open at the source
What the source handed over
{
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  "cve_id": "CVE-2026-104988",
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    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
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      "name": "Authentication Bypass by Spoofing"
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  "description": "A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open when an EST fullcmc enrollment request is submitted via BasicAuth without an end-user TLS client certificate. The SSL_CLIENT_CERT session attribute retains the EST subsystem's agent certificate, which causes downstream authorization checks to treat the request as agent-privileged. An authenticated EST user can exploit this to obtain CA-signed certificates with arbitrary subject names.",
  "ghsa_id": "GHSA-qgmm-v3v3-wff2",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-qgmm-v3v3-wff2",
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    "https://github.com/advisories/GHSA-qgmm-v3v3-wff2"
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  "repository_advisory_url": null,
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  "url": "https://api.github.com/advisories/GHSA-qgmm-v3v3-wff2",
  "vulnerabilities": [],
  "withdrawn_at": null
}
—
Cwe
cwe
Red HatCWE-290
receipt
Source
Red Hat
Its words
CWE-290
Read by
field:CWE
Said since
2026-10-03 00:06 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
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  "advisories": [],
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  "cvss3_score": "8.1",
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  "package_state": null,
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  "severity": "important"
}
—
Product
product
NVDRed Hat Certificate System 10
receipt
Source
NVD
Its words
Red Hat Certificate System 10
Read by
field:cve.affected[].affectedData[].product
Said since
2026-10-03 00:06 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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            "vendor": "Red Hat"
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}
—
Severity
severity
GitHub advisorieshigh
From 7.0 to 8.9.
receipt
Source
GitHub advisories
Its words
high
Read by
field:severity
Said since
2026-10-03 00:02 UTC
Last answered
2026-10-04 12:14 UTC
Original
open at the source
What the source handed over
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  "withdrawn_at": null
}
—
Severity
severity
Red Hatimportant
A flaw that can easily compromise confidentiality, integrity or availability.
receipt
Source
Red Hat
Its words
important
Read by
field:severity
Said since
2026-10-03 00:06 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
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  "CWE": "CWE-290",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2545316",
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  "cvss3_score": "8.1",
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  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-10-02T19:04:41Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-104988.json",
  "severity": "important"
}
high
Status
status
NVDReceived
receipt
Source
NVD
Its words
Received
Read by
field:cve.vulnStatus
Said since
2026-10-03 00:06 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:10"
            ],
            "defaultStatus": "affected",
            "packageName": "redhat-pki:10/redhat-pki",
            "product": "Red Hat Certificate System 10",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:11"
            ],
            "defaultStatus": "affected",
            "packageName": "redhat-pki",
            "product": "Red Hat Certificate System 11",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Certificate System 9",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "redhat-pki",
            "product": "Red Hat Certificate System 9",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10"
            ],
            "defaultStatus": "affected",
            "packageName": "dogtag-pki",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Enterprise Linux 6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:7"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core:10.6/pki-core",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open when an EST fullcmc enrollment request is submitted via BasicAuth without an end-user TLS client certificate. The SSL_CLIENT_CERT session attribute retains the EST subsystem's agent certificate, which causes downstream authorization checks to treat the request as agent-privileged. An authenticated EST user can exploit this to obtain CA-signed certificates with arbitrary subject names."
      }
    ],
    "id": "CVE-2026-104988",
    "lastModified": "2026-10-02T20:17:01.370",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Primary"
        }
      ]
    },
    "published": "2026-10-02T20:17:01.370",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/security/cve/CVE-2026-104988"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545316"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-290"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Primary"
      }
    ]
  }
}
—
Vendor
vendor
NVDRed Hat
receipt
Source
NVD
Its words
Red Hat
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-10-03 00:06 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:10"
            ],
            "defaultStatus": "affected",
            "packageName": "redhat-pki:10/redhat-pki",
            "product": "Red Hat Certificate System 10",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:11"
            ],
            "defaultStatus": "affected",
            "packageName": "redhat-pki",
            "product": "Red Hat Certificate System 11",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Certificate System 9",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:certificate_system:9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "redhat-pki",
            "product": "Red Hat Certificate System 9",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10"
            ],
            "defaultStatus": "affected",
            "packageName": "dogtag-pki",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Enterprise Linux 6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:7"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core:10.6/pki-core",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "pki-core",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open when an EST fullcmc enrollment request is submitted via BasicAuth without an end-user TLS client certificate. The SSL_CLIENT_CERT session attribute retains the EST subsystem's agent certificate, which causes downstream authorization checks to treat the request as agent-privileged. An authenticated EST user can exploit this to obtain CA-signed certificates with arbitrary subject names."
      }
    ],
    "id": "CVE-2026-104988",
    "lastModified": "2026-10-02T20:17:01.370",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Primary"
        }
      ]
    },
    "published": "2026-10-02T20:17:01.370",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/security/cve/CVE-2026-104988"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545316"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-290"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Primary"
      }
    ]
  }
}
—

vulnerability

pki-core: dogtag-pki: redhat-pki: pki: EST fullcmc authentication bypass allows certificate mis-issuance with arbitrary subject
zetlyn/cve-redhat · 2026-10-02
cvss 8.1 cwe CWE-290 severity important source
A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open when an EST fullcmc enrollment request is submitted via BasicAuth without an end-user TLS client certificate. The SSL_CLIENT_CERT session attribute retains the EST subsystem's agent certificate, which causes downstream authorization checks to treat the request as agent-privileged. An authenticated EST user can exploit this to obtain CA-signed certificates with arbitrary subject names.
zetlyn/cve-nvd · 2026-10-02
cvss 8.1 product Red Hat Certificate System 10 status Received vendor Red Hat source
A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open...
zetlyn/cve-ghsa · 2026-10-02
cvss 8.1 cwe CWE-290 severity high source