CVE-2026-84806 Kimai before 2.63.0 Authorization Bypass via Team Access Endpoints
Authenticated users with team edit permissions can improperly grant team access to customers, projects, or activities via insufficient permission checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84806?
CVE-2026-84806 is a medium-severity missing authorization vulnerability in kimai, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-732
Which versions are affected by CVE-2026-84806?
How do I fix CVE-2026-84806?
No fix has been published for CVE-2026-84806 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-84806 being exploited?
There is no known exploitation of CVE-2026-84806 in the wild and no public exploit code.
Sources
Also known as GHSA-9jvx-vm4p-vv5f, GHSA-gmm9-hfxg-7v29.