Skip to main content
← All vulnerabilities
CVE-2026-16443

Keycloak-services: keycloak-services: saml broker metadata import disables response signature validation

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

A flaw was found in the SAML metadata import functionality of the keycloak-services component, which is the core engine for identity brokering in Red Hat Build of Keycloak. When importing identity provider metadata that lacks specific usage attributes for keys, the system incorrectly disables signature validation for SAML responses even if a signing certificate is provided. This issue allows an unauthenticated attacker to forge a SAML response and gain unauthorized access to a user account by knowing their external identifier.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • rhbk/keycloak-operator-bundle

    Version range not reported

  • rhbk/keycloak-rhel9

    Version range not reported

  • rhbk/keycloak-rhel9-operator

    Version range not reported

  • keycloak-services

    Version range not reported

  • rhbk-openshift-rhel9/rhbk-openshift-rhel9

    Version range not reported

  • rhbk/keycloak-operator-bundle

    Version range not reported

  • rhbk/keycloak-rhel9

    Version range not reported

  • rhbk/keycloak-rhel9-operator

    Version range not reported

  • keycloak-services

    Version range not reported

  • rhbk-keycloak-rhel9/rhbk-keycloak-rhel9

    Version range not reported

  • rhbk-openshift-rhel9/rhbk-openshift-rhel9

    Version range not reported

  • keycloak-services

    Version range not reported

  • keycloak-services

    Version range not reported

  • keycloak-services

    Version range not reported

References 6

access.redhat.com

bugzilla.redhat.com