CVE-2026-102985 Plane: Any project member can modify (deactivate) other members' records
Project members can bypass authorization checks to deactivate other members or modify their preferences, disrupting project access and integrity.
- 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-2026-102985?
CVE-2026-102985 is a medium-severity missing authorization vulnerability in makeplane plane, published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Plane is an open-source project management tool. In 1.3.1 and earlier, ProjectMemberViewSet.partial_update places its authorization checks inside the role update branch, so a guest or member can omit role and change another ProjectMember record's is_active field, including deactivating a project administrator. ProjectMemberPreferenceEndpoint.patch separately trusts the member_id path value and lets a project member overwrite another member's preferences. These missing object-level authorization checks permit membership disruption and cross-member preference tampering. The vulnerability is fixed in 1.4.0.
Weakness: CWE-862
Which versions are affected by CVE-2026-102985?
How do I fix CVE-2026-102985?
No fix has been published for CVE-2026-102985 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-2026-102985 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-102985 exists.
Sources
Also known as GHSA-25gg-cxm8-g7h9.