Missing Authorization in kimai2 - CVE-2026-52825
Published: June 29, 2026
Vulnerability identifier: #VU135848
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-52825
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 expand team scope beyond authorized visibility.
The vulnerability exists due to improper authorization in the Team member assignment API when handling crafted backend API requests to add users to an editable team. A remote user can send a specially crafted API request to expand team scope beyond authorized visibility.
Once the unauthorized team relationship is created, downstream authorization and visibility decisions may treat it as legitimate.
How to mitigate CVE-2026-52825
Install security update from vendor's website.