CVE-2026-84806: Kimai

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Kimai before 2.63.0 contains an improper authorization vulnerability in team access endpoints that allows authenticated users with team edit permissions and read-only access to grant team access to customers, projects, or activities. Attackers can exploit insufficient permission checks by sending POST requests to team access endpoints to modify access control lists for entities they should not be able to modify.

Affected products

• Kimai Kimai: before 2.63.0 (fixed in 2.63.0)

Published 2026-09-02. Last modified 2026-09-02.