Vulnerability in Plane Project Management Tool Affects User Data Integrity
CVE-2026-104967

5.4MEDIUM

Key Information:

Vendor

Makeplane

Status
Plane
Vendor
CVE Published:
5 October 2026

What is CVE-2026-104967?

The Plane project management tool suffers from a security flaw that allows unauthorized access to issue IDs via the BulkDeleteIssuesEndpoint and SubIssuesEndpoint. These endpoints allow API users to operate on issue IDs without verifying their association with the correct workspace and project. Consequently, an attacker who is recognized as a member or administrator can potentially delete or manipulate issues outside their authorized workspace. The vulnerability has been addressed in version 1.4.0.

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/9270
x_refsource_MISC
https://github.com/makeplane/plane/commit/ad73ca300ce35e4...
x_refsource_MISC

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.