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.
Published: 2026-08-25
Score: 0 Low
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 25 Aug 2026 23:30:00 +0000

Type Values Removed Values Added
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.
Title Kimai before 2.53.0 Open Redirect via RelayState
First Time appeared Kimai
Kimai kimai
Weaknesses CWE-601
CPEs cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:*
Vendors & Products Kimai
Kimai kimai
References
Metrics cvssV3_1

{'score': 0, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:N'}

cvssV4_0

{'score': 0, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

Kimai Kimai
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-25T23:19:05.809Z

Reserved: 2026-08-25T23:14:37.730Z

Link: CVE-2026-80200

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T01:15:04Z

Weaknesses
  • CWE-601

    URL Redirection to Untrusted Site ('Open Redirect')