All vulnerabilities
CVE-2026-104961GHSA-wjgv-cq7w-258v

Plane: WorkspaceOwnerPermission missing is_active check allows deactivated users to retain owner access

makeplane plane
Open in ThreatlineRecord JSON
CVSS
5.4Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.18%Chance of exploitation activity in the next 30 days, higher than 6% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in1.4.0Fixed versionGitHub
Published5 Oct 2026Updated 6 Oct 2026CVE List

What fixes it

  • 1.4.0makeplane/plane, otherGitHub

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Plane is an open-source project management tool. Prior to 1.4.0, WorkspaceOwnerPermission does not require is_active=True when checking whether a user is a workspace owner. A deactivated user can therefore remain authorized as the workspace owner and retain owner-level access. This issue is fixed in 1.4.0.

Text from CVE List

Affected versions 2

  • planeaffected: < 1.4.0CVE List
  • makeplane/plane, other<= 1.3.1GitHub

References 4