Vulnerability in Kimai
CVE-2026-40486
Kimai is an open-source time tracking application. In versions 2.52.0 and below, the User Preferences API endpoint (PATCH /api/users/{id}/preferences) applies submitted preference values without checking the isEnabled() flag on preference…
Vulnerability class: Mass Assignment
EPSS: 0.000 (5.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Kimai — versions < 2.53.0
Weakness classification (CWE)
References
- https://github.com/kimai/kimai/security/advisories/GHSA-qh43-xrjm-4ggp (x_refsource_CONFIRM)
- https://github.com/kimai/kimai/releases/tag/2.53.0 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-40486?
- CVE-2026-40486 is a medium-severity vulnerability in Kimai, classified under Improperly Controlled Modification of Dynamically-Determined Object Attributes. CVSS score: 4.3/10. Published 2026-04-17.
- How severe is CVE-2026-40486?
- Medium severity. CVSS v3 base score is 4.3 out of 10.