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CVE-2026-37979 Keycloak: keycloak: information disclosure via oidc token introspection endpoint audience bypass

🗓️ 19 May 2026 10:52:30Reported by redhatType 
cvelist
 cvelist
🔗 www.cve.org👁 36 Views

Keycloak OIDC introspection bypasses audience restrictions, exposing token claims.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-37979
19 May 202610:52
attackerkb
Circl
CVE-2026-37979
19 May 202612:48
circl
CNNVD
Keycloak 访问控制错误漏洞
19 May 202600:00
cnnvd
CVE
CVE-2026-37979
19 May 202610:52
cve
EUVD
EUVD-2026-30887
19 May 202610:52
euvd
Github Security Blog
Keycloak: Information disclosure via OIDC token introspection endpoint audience bypass
19 May 202612:31
github
Tenable Nessus
Keycloak < 26.6.2 Multiple Vulnerabilities
22 May 202600:00
nessus
NVD
CVE-2026-37979
19 May 202612:16
nvd
OSV
GHSA-4X37-HW65-52W8 Keycloak: Information disclosure via OIDC token introspection endpoint audience bypass
19 May 202612:31
osv
OSV
MINI-4C54-7R6W-253C
5 Jun 202616:52
osv
Rows per page
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-operator-bundle",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.4.12-1",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-rhel9",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.4-17",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-rhel9-operator",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.4-17",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4.12",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unaffected",
    "packageName": "rhbk/keycloak-rhel9",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  }
]

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20 May 2026 16:08Current
CVSS 3.16.5
EPSS0.00012
36