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OpenAdvisories
Medium · 4.7 CVE-2026-80200 EUVD-2026-66222GHSA-3jp4-mhh4-gcgrGHSA-wv9h-9jv8-rqm9

Kimai before 2.53.0 Open Redirect via RelayState

Published Aug 25, 2026 · Updated Oct 8, 2026 · Assigned by VulnCheck

Description

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.

Affected products

VendorProductAffectedFixed
kimai kimai < 2.53.0 2.53.0

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist kimai/kimai < 2.53.0 2.53.0 GHSA-3jp4-mhh4-gcgr

References