CVE-2026-104894: CWE-639: Authorization Bypass Through User-Controlled Key in makeplane plane
Description
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.
CVSS v3.1
Score 4.3medium
Affected software
makeplane
plane
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-104894 is an authorization bypass vulnerability in the Plane project management tool. Before version 1.4.0, the modules endpoint does not validate that issue UUIDs provided in the URL path belong to the caller's workspace. This allows an authenticated user to link issues from other workspaces to modules within their own workspace, bypassing intended access controls. The issue is resolved in Plane version 1.4.0.
Potential Impact
An authenticated user can link issues from any workspace to modules in their own workspace without proper authorization checks. This could lead to unauthorized modification of module issue associations, potentially causing confusion or mismanagement of project issues. There is no impact on confidentiality or availability, only integrity is affected.
Mitigation Recommendations
Upgrade Plane to version 1.4.0 or later, where this authorization bypass vulnerability is fixed. No other mitigations are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-02T14:59:11.776Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac3d88f2cdf04f6562043b4
Added to database: 10/05/2026, 17:04:15 UTC
Last enriched: 10/05/2026, 17:18:33 UTC
Last updated: 10/05/2026, 19:04:09 UTC
Views: 14
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.