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CVE PROGRAM SOURCE RECORD4.2 Medium

CVE-2026-97176

Keycloak-services: keycloak-services: essential acr requirement silently bypassed via cookie authenticator

Description

A flaw was found in the Level of Authentication enforcement mechanism of Keycloak, an identity and access management solution. The issue occurs when a client specifically requires a higher security level for a user who already has an active session at a lower level. Due to a logic error in how session re-evaluations are handled, Keycloak may incorrectly issue a token at the lower security level instead of enforcing the required higher level, potentially allowing unauthorized access to sensitive resources that rely on these security claims.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Build of Keycloak

Default version status: affected

Red Hat Red Hat Build of Keycloak

Default version status: affected

Red Hat Red Hat Single Sign-On 7

Default version status: unaffected

References