Red Hat build of Keycloak 26.6 · Vulnerability
Historical advisory recorded 10 Nov 2026 06:02:11 UTC. Read the latest advisory.
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.
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cve-program · CVE-2026-107124
PublishedKeycloak-services: keycloak-services: oidc logout endpoint session fixation via id_token_hint leading to account takeover
A 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.
- Source published
- 6 Nov 2026 05:57:23 UTC
- Source modified
- 10 Nov 2026 04:48:27 UTC
- Saved here
- 10 Nov 2026 06:02:11 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 6.4 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N