CVE-2026-105634
⚠️ highSummary
Plane is an open-source project management tool. Prior to 1.3.0, the ProjectMemberViewSet.partial_update method allows any project member, including a user with the lowest GUEST role, to modify another project member's role. The authorization check prevents assigning a role higher than the requester's role but does not prevent assigning a lower or equal role, allowing a Guest to demote Administrators and Members and deny them project control. This vulnerability is fixed in 1.3.0.
CVSS Score
8.1
High
EPSS Score
0.3
Exploit Probability
Published Date
2026-10-05
First Seen: 2026-10-08
📊 Relative Risk Intelligence
This CVE is High Risk - more severe than 76.7% of all 365,616 vulnerabilities in our database.
#85,364
Top 25% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: Oct 6, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by
CISA
Last Modified
2026-10-06
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE IDs (Weakness Types)