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.

Scoring

Severity
MEDIUM
CVSS base score
5.3
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N
EPSS probability
0.29%
CWE
CWE-601
Published
2026-08-25
Last modified
2026-08-28

Affected products

Weakness type

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