CVE-2026-105637 Plane - Broken Access Control

Plane prior to 1.4.0 contains a broken access control vulnerability caused by missing project_id constraint in asset retrieval, letting workspace Guests reassign assets to attacker-controlled projects and obtain presigned download URLs, exploit requires guest access in the workspace.

CVSS base score 9.6 /10

Critical

CISA KEV: Not listed
Public exploit: None known
Authentication: Required
EPSS: 0.32% chance of exploitation in 30 days

View the NVD record ↗

Details

Type: Broken Access Control
Impact: Broken Access Control, Information Disclosure
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Published: 5 October 2026
Updated: 15 October 2026
Weakness: CWE-639

Vendor fix

Update to version 1.4.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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