CVE-2026-125652 Keycloak-services: keycloak-services: client-level mandatory pkce bypass via login-actions entry point
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-125652?
CVE-2026-125652 is a medium-severity vulnerability in Red Hat Build of Keycloak, published on 10 Nov 2026.
Official description
A flaw was found in the keycloak-services component of Keycloak, which provides the core authentication and authorization logic for the identity provider. The issue occurs when a user initiates a login after visiting the password reset page, causing the system to skip mandatory security checks for Proof Key for Code Exchange (PKCE). This could allow an attacker who intercepts a login code to gain unauthorized access to the user's account without needing the required security verifier.
Weakness: CWE-862
Which versions are affected by CVE-2026-125652?
How do I fix CVE-2026-125652?
No fix has been published for CVE-2026-125652 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-125652 being exploited?
There is no known exploitation of CVE-2026-125652 in the wild and no public exploit code.
Sources
Also known as GHSA-rp3r-7x6g-5mw6.