CVE-2026-104962
Plane is an open-source project management tool.
Does this matter?
Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.30% probability · 23th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Source
- security-advisories@github.com
EPSS moved from 0.3% on 6 October 2026 to 0.3% on 26 October 2026.
References
- https://github.com/makeplane/plane/commit/5842ca8bf2b984b81c45bf58148a39b348a8995e
- https://github.com/makeplane/plane/pull/9375
- https://github.com/makeplane/plane/releases/tag/v1.4.0
- https://github.com/makeplane/plane/security/advisories/GHSA-w2vf-m9x9-mvmc
- https://github.com/makeplane/plane/security/advisories/GHSA-w2vf-m9x9-mvmc
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.