Medium severity · published Oct 5, 2026
CVE-2026-104961
Plane: WorkspaceOwnerPermission missing is_active check allows deactivated users to retain owner access
5.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PL
plane · makeplane
< 1.4.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-104961
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-104961
x_refsource_CONFIRM
https://github.com/makeplane/plane/security/advisories/GHSA-wjgv-cq7w-258v
x_refsource_MISC
https://github.com/makeplane/plane/pull/9290
x_refsource_MISC
https://github.com/makeplane/plane/commit/6c9dbb50434d16ea00a00d1574723dfd0c3d2446
x_refsource_MISC
https://github.com/makeplane/plane/releases/tag/v1.4.0
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