{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-18569",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-18569",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-04T05:13:08.387Z",
    "updatedAt": "2026-08-31T15:28:59.707Z",
    "importedAt": "2026-10-24T01:57:55.771Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Keycloak-services: keycloak-services: oidc backchannel logout accepts unsigned forged logout tokens",
      "summary": "A flaw was found in the backchannel logout endpoint of the keycloak-services component, which is part of the Red Hat Build of Keycloak. This component handles authentication and session management for applications. The issue occurs when an OIDC identity provider is configured to skip signature validation. In this specific setup, the system incorrectly accepts logout requests that have no cryptographic signature. An attacker who knows certain technical details about a user's session can use this flaw to force that user to be logged out, potentially disrupting their work.",
      "affected": [
        {
          "vendor": "Red Hat",
          "product": "Red Hat Build of Keycloak",
          "packageName": "keycloak-services",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Build of Keycloak",
          "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Build of Keycloak",
          "packageName": "rhbk-openshift-rhel9/rhbk-openshift-rhel9",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Data Grid 8",
          "packageName": "keycloak-services",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
          "packageName": "keycloak-services",
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "defaultStatus": "unaffected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Single Sign-On 7",
          "packageName": "keycloak-services",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected",
          "versions": []
        }
      ]
    }
  }
}