CVE-2026-104955 Plane: Project Member can escalate Project Guest to Member via PATCH /project-members/{pk} (BAC / Privilege Escalation)

Plane is an open-source project management tool. Prior to 1.4.0, a Project Member with role 15 can send a PATCH request to the project-member update endpoint at /api/workspaces/workspaceslug/projects/projectid/members/memberpk/ to change another user's project role. The role-update logic blocks...

CVE-2026-104955

The open-source project management tool Plane is vulnerable to Broken Access Control and Privilege Escalation prior to version 1.4.0 . An attacker with a Project Member role (role 15) can send a PATCH request to the /api/workspaces/{workspace_slug}/projects/{project_id}/members/{member_pk}/ endpo...

CVE-2026-104955 Plane: Project Member can escalate Project Guest to Member via PATCH /project-members/{pk} (BAC / Privilege Escalation)

Plane is an open-source project management tool. Prior to 1.4.0, a Project Member with role 15 can send a PATCH request to the project-member update endpoint at /api/workspaces/workspaceslug/projects/projectid/members/memberpk/ to change another user's project role. The role-update logic blocks...

CVE-2026-104955 Plane: Project Member can escalate Project Guest to Member via PATCH /project-members/{pk} (BAC / Privilege Escalation)

Plane is an open-source project management tool. Prior to 1.4.0, a Project Member with role 15 can send a PATCH request to the project-member update endpoint at /api/workspaces/workspaceslug/projects/projectid/members/memberpk/ to change another user's project role. The role-update logic blocks...