CVE-2026-105632 Plane - Broken Access Control

Plane prior to 1.4.0 contains a broken access control caused by insufficient project visibility checks in the GraphQL joinProject mutation, letting any workspace member add themselves to private projects with full Member role, exploit requires workspace membership.

CVSS base score 8.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.31% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control, Data Tampering, Information Disclosure
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
5 October 2026
Updated
15 October 2026
Weakness
CWE-284

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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