HIGH 8.1 NVD
CVE-2026-105634
Plane is an open-source project management tool. Prior to 1.3.0, the ProjectMemberViewSet.partial_update method allows any project member, including a user with
Plane is an open-source project management tool. Prior to 1.3.0, the ProjectMemberViewSet.partial_update method allows any project member, including a user with the lowest GUEST role, to modify another project member's role. The authorization check prevents assigning a role higher than the requester's role but does not prevent assigning a lower or equal role, allowing a Guest to demote Administrators and Members and deny them project control. This vulnerability is fixed in 1.3.0.
References
- https://github.com/makeplane/plane/commit/587fe76032fb69275866fdeb655699a70a83c521
- https://github.com/makeplane/plane/pull/8833
- https://github.com/makeplane/plane/releases/tag/v1.3.0
- https://github.com/makeplane/plane/security/advisories/GHSA-494h-3rcq-5g3c
This high severity vulnerability with a CVSS score of 8.1 was published on 2026-10-05 via NVD.
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