CVE-2026-107124
Red Hat build of Keycloak 26.6 · Vulnerability
CVSS 3.1 6.4 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-107124
PublishedA flaw was found in the OIDC logout endpoint of the keycloak-services component, which handles user session termination in Red Hat Build of Keycloak. The issue occurs because the system sets a session cookie based on an unvalidated token hint before completing security checks. An attacker can use this flaw to fix a session ID in a victim's browser, allowing them to hijack the victim's subsequent login and gain full control over their account.
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-2026-107124 · CVE overview and exploitation status
cve-program · CVE-2026-107124
Related changes
Linked by CVE identifier- Keycloak-services: keycloak-services: oidc logout endpoint session fixation via id_token_hint leading to account takeover · Affected-version evidence changed · 6 Nov 2026
- Keycloak-services: keycloak-services: oidc logout endpoint session fixation via id_token_hint leading to account takeover · Affected-version evidence changed · 6 Nov 2026
- Keycloak-services: keycloak-services: oidc logout endpoint session fixation via id_token_hint leading to account takeover · Newly collected advisory · 6 Nov 2026