CVE-2026-105634Plane: Privilege Escalation: Project Guest Can Demote Admin/Member Roles
Updated under an hour ago ()
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It affects makeplane plane. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.29%, higher than 20% of scored CVEs.
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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
- 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Weakness (CWE)
- CWE-269
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.29% (percentile 20)
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
makeplane plane makeplane:plane (from the name) | before 1.3.0 | CNA record |
References
- https://github.com/makeplane/plane/security/advisories/GHSA-494h-3rcq-5g3cx-refsource-confirm
- https://github.com/makeplane/plane/pull/8833x-refsource-misc
- https://github.com/makeplane/plane/commit/587fe76032fb69275866fdeb655699a70a83c521x-refsource-misc
- https://github.com/makeplane/plane/releases/tag/v1.3.0x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.