CVE-2026-80200
Published:August 25, 2026
Updated:September 24, 2026
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 Packages
https://github.com/kimai/kimai.git (GITHUB):
Affected version(s) >=0.1 <2.53.0Fix Suggestion:
Update to version 2.53.0kimai/kimai (PHP):
Affected version(s) >=0.1 <2.53.0Fix Suggestion:
Update to version 2.53.0Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
1.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
HIGH
User Interaction
ACTIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
URL Redirection to Untrusted Site ('Open Redirect')
EPSS
Base Score:
0.29