CVE-2026-92855
Red Hat build of Keycloak 26.4 · Vulnerability
CVSS 3.1 7.4 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-92855
PublishedA flaw was found in the SAML identity broker component of Keycloak, which is used to delegate authentication to external identity providers. The issue occurs because the broker fails to verify that a user actually possesses the private key associated with a holder-of-key assertion. An attacker who intercepts a victim signed assertion can replay it to gain unauthorized access and impersonate the victim without needing their private key.
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2026-92855 · CVE overview and exploitation status
cve-program · CVE-2026-92855
Related changes
Linked by CVE identifier- Keycloak-services: keycloak-services: saml broker accepts holder-of-key assertions without proof of key possession · Affected-version evidence changed · 6 Nov 2026
- Keycloak-services: keycloak-services: saml broker accepts holder-of-key assertions without proof of key possession · Affected-version evidence changed · 6 Nov 2026
- Keycloak-services: keycloak-services: saml broker accepts holder-of-key assertions without proof of key possession · Newly collected advisory · 5 Nov 2026