CVE-2026-80200
Kimai before 2.53.0 Open Redirect via RelayState
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.
INFO
Published Date :
Aug. 25, 2026, 11:19 p.m.
Last Modified :
Aug. 25, 2026, 11:19 p.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
Affected Products
The following products are affected by CVE-2026-80200
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | NONE | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | NONE | MITRE-CVE | ||||
| CVSS 4.0 | NONE | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update Kimai to version 2.53.0 or later.
- Validate all RelayState parameters.
- Restrict POST requests to SAML handler.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-80200 vulnerability anywhere in the article.