Medium 6.8Published Oct 5, 2026

CVE-2026-104964Plane: Cross-Workspace Project Modification via Unscoped Project Lookup

Updated under an hour ago (2026-10-19 06:30 UTC)

Does this affect you?

It affects makeplane plane. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for makeplane plane

Exploited in the last 30 days

Plane is an open-source project management tool. Prior to 1.4.0, Plane's project update endpoint authorizes the caller against the workspace slug in the request URL but loads the target project globally by UUID without binding it to that workspace. An administrator of one workspace can modify a project in another workspace when the victim project UUID is known. This violates tenant isolation and permits unauthorized cross-workspace changes to project metadata and configuration. This issue is fixed in 1.4.0.

CVSS: 6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

makeplane plane makeplane:plane (from the name)	before 1.4.0	CNA record

References

https://github.com/makeplane/plane/security/advisories/GHSA-pp22-3ghf-949qx-refsource-confirm
https://github.com/makeplane/plane/commit/9491bdbe46e269611f9dad9cfb5182c2da8ca65ax-refsource-misc
https://github.com/makeplane/plane/releases/tag/v1.4.0x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.