VulnerabilityDeferred

CVE-2026-104964

This violates tenant isolation and permits unauthorized cross-workspace changes to project metadata and configuration.

MEDIUM 6.8EPSS 0.29%

Does this matter?

Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.

Description

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 3.1: 6.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
EPSS: 0.29% probability · 21th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-639
Source: security-advisories@github.com

EPSS trend

EPSS moved from 0.3% on 6 October 2026 to 0.3% on 26 October 2026.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.