A flaw was found in the authentication session management of Keycloak, an identity and access management solution.

A flaw was found in the authentication session management of Keycloak, an identity and access management solution. The issue occurs when an administrator enforces a stronger authentication flow, such as mandatory two-factor authentication (2FA) setup, through a client policy. A user can bypass this requirement by manually visiting a specific session restart web link during the login process. This action clears the internal markers that track the required security steps, allowing the user to log in with only a password and gain access without completing the mandated 2FA setup.

CVSS 3.1

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Severity from

no source yet

Weakness

CWE-862

• www.cve.org/CVERecord?id=CVE-2026-94218
• nvd.nist.gov/vuln/detail/CVE-2026-94218
• access.redhat.com/security/cve/CVE-2026-94218
• bugzilla.redhat.com/show_bug.cgi?id=2537314