CVE-2026-104978 Plane - Authentication Bypass

Plane < 1.4.0 contains an authentication bypass caused by insufficient verification in project invitation endpoints, letting authenticated attackers enumerate and accept invitations by registering invited emails, exploit requires authenticated user access.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.29% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Published
5 October 2026
Updated
15 October 2026
Weakness
CWE-863

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

← All CVEs