Open Redirect in Kimai
CVE-2026-80200
Kimai before 2.53.0 contains an open redirect vulnerability in the SAML authentication success handler that accepts unvalidated RelayState POST parameters as redirect destinations. Attackers with IdP access can supply malicious RelayState values to redirect authenticated users to attacker-controlled URLs for credential theft or phishing attacks.
Vulnerability class: Open Redirect
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-3jp4-mhh4-gcgr) (vendor-advisory)
- VulnCheck Advisory: Kimai before 2.53.0 Open Redirect via RelayState (third-party-advisory)