CVE-2026-104962

Plane is an open-source project management tool

Risk score: 43/100
CVSS: 6.5 v3.1
Exploit chance (30 days): 0.3%
Published: 5 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is: Plane is an open-source project management tool. Prior to 1.4.0, GET /api/v1/workspaces/{slug}/projects/{project_id}/members/ returns the complete project-member roster, including each member's email address, first and last name, display name, avatar, and role. ProjectMemberPermission gates the endpoint, but its SAFE_…
Affected: See advisory
Fix: Upgrade the product to 1.4.0 or later.
Exploitation: No known exploitation

Why it is Yellow

CVSS 6.5 medium

References

Original description

Plane is an open-source project management tool. Prior to 1.4.0, GET /api/v1/workspaces/{slug}/projects/{project_id}/members/ returns the complete project-member roster, including each member's email address, first and last name, display name, avatar, and role. ProjectMemberPermission gates the endpoint, but its SAFE_METHODS branch checks only whether the caller is an active ProjectMember of any project in the workspace and does not bind the check to view.project_id. The view then filters solely by the project_id supplied in the URL. Consequently, any authenticated user who belongs to one project in a workspace, including a Guest, can read the roster of another private project in the same workspace. This issue is fixed in 1.4.0.

Last activity 5 Oct 2026. Patch Forecast updates every hour.