Unauthorized Access Vulnerability in Plane Project Management Tool
CVE-2026-105632

8.7HIGH

Key Information:

Vendor

Makeplane

Status
Plane
Vendor
CVE Published:
5 October 2026

What is CVE-2026-105632?

The Plane project management tool has a vulnerability that enables any workspace member to self-add to any project, including those marked as private. Prior to version 1.4.0, the GraphQL joinProject mutation lacked sufficient checks, allowing low-privilege users to gain full access to private project data and modify confidential information. This issue undermines project-level tenant isolation and poses significant risks to data privacy and security within the workspace.

Affected Version(s)

plane < 1.4.0

References

https://github.com/makeplane/plane/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/makeplane/plane/pull/9333
x_refsource_MISC
https://github.com/makeplane/plane/commit/e1ef42023ab66b5...
x_refsource_MISC

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.