CVE-2026-104894: Makeplane Plane

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

Plane is an open-source project management tool. Prior to 1.4.0, the modules endpoint accepts issue UUIDs in the URL path without validating that they belong to the caller's workspace. An authenticated user can link issues from any workspace to modules in their own workspace. This issue is fixed in 1.4.0.

Affected products

• Makeplane Plane: before 1.4.0 (fixed in 1.4.0)

Published 2026-10-05. Last modified 2026-10-05.