Missing Authorization in kimai2 - CVE-2026-41498
Published: April 21, 2026
Vulnerability identifier: #VU126711
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-41498
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Kevin Papst
Affected software:
kimai2
kimai2
Detailed vulnerability description
The vulnerability allows a remote user to modify team associations and disclose limited team-related information.
The vulnerability exists due to missing authorization in Team API endpoints when handling requests to team association operations. A remote privileged user can send a specially crafted API request to modify team membership, customer assignments, project assignments, and activity assignments to modify team associations and disclose limited team-related information.
The issue is exploitable if an administrator grants the edit_team permission to a lower-privilege role through the permissions UI.
How to mitigate CVE-2026-41498
Install security update from vendor's website.