Quick answers
- Is CVE-2026-104964 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-104964 being exploited in the wild.
- How severe is CVE-2026-104964?
- Medium severity, with a CVSS score of 6.8, published 5 October 2026.
- Which products and versions are affected?
- Plane before 1.4.0.
- Is there a fix for CVE-2026-104964?
- Yes: fixed in 1.4.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-104964 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-104964?
- Check whether you run Plane at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 1.4.0
Technical details
The project update endpoint checked authorization against the workspace slug in the request URL but retrieved the target project globally by UUID without re-validating it belonged to that workspace. This Insecure Direct Object Reference (IDOR) allowed any authenticated user with admin rights in one workspace to modify projects in other workspaces by supplying a known project UUID from a different workspace. The fix scopes the Project.objects.get() query to the requested workspace slug.
Affected products
- Plane Plane before 1.4.0
Timeline
- 2026-10-05: disclosed
- 2026-07-31: patched