CVE-2026-105641 Plane - Authentication Bypass

Plane prior to 1.4.0 contains a broken authentication caused by fixed, publicly known SECRET_KEY and LIVE_SERVER_SECRET_KEY defaults in deployment manifests, letting attackers forge Django-signed values and bypass live-service authentication, exploit requires unchanged default secrets.

CVSS base score 9.8 /10

Critical

CISA KEV: Not listed
Public exploit: None known
Authentication: Not required
EPSS: 0.46% chance of exploitation in 30 days

View the NVD record ↗

Details

Type: Authentication Bypass
Impact: Broken Authentication
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 5 October 2026
Updated: 15 October 2026
Weakness: CWE-798

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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