CRITICAL 9.3 NVD
CVE-2026-80202
Kimai before 2.56.0 does not enforce team-membership checks in TimesheetVoter::voteOnAttribute(), which maps permissions only to own_timesheet or other_timeshee
Kimai before 2.56.0 does not enforce team-membership checks in TimesheetVoter::voteOnAttribute(), which maps permissions only to own_timesheet or other_timesheet. As a result, any authenticated user with ROLE_TEAMLEAD (or a role holding edit_other_timesheet/delete_other_timesheet) can read, modify, and permanently delete timesheets belonging to any user system-wide via the API, regardless of team membership. Timesheet IDs are sequential integers and trivially enumerable. ROLE_USER accounts are correctly restricted. (Note: the maintainers characterize this behavior as matching the documented permission model.)
References
- https://github.com/kimai/kimai/security/advisories/GHSA-9g2q-w3w2-vf7q
- https://www.vulncheck.com/advisories/kimai-before-2.56.0-authorization-bypass-via-timeshee
- https://github.com/kimai/kimai/security/advisories/GHSA-9g2q-w3w2-vf7q
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-08-26 via NVD.
Risk Timeline
CVE Disclosed2026-08-26 · -1 days ago
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