CVE-2026-105634
NVD: Plane is an open-source project management tool. NVD: 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. NVD: 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.
8.1 Severity
HIGH EPSS
0.0029 (20) KEV
-
Source-published summary
NVD: Plane is an open-source project management tool. NVD: 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. NVD: 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.
Possible impact
Source describes privilege escalation risk. Possible impact: An attacker may cross a privilege boundary and gain more access than intended.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Patch confirmed by source text; fixed version context: 1.3.0..
Why it matters
Source describes privilege escalation risk. Possible impact: An attacker may cross a privilege boundary and gain more access than intended.; CVSS 8.1 (HIGH); EPSS percentile 20; not listed in KEV; Patch confirmed by source text; fixed version context: 1.3.0; sources: NVD, OSV.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
exposure unknown
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD / OSV description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.