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CVE-2026-105634

8.1 HIGHpublic exploit available

Published 2026-10-05 · Updated 2026-10-06

AI risk analysis

Summary
This vulnerability allows any project member, including a guest, to demote other members to a lower role, potentially denying them project control. This is significant because it can lead to unauthorized access and control over project resources.
Exploitability
Exploitation is relatively easy as it requires only a project member with the GUEST role to modify another member's role. Precondition is access to the ProjectMemberViewSet.partial_update method.
Blast radius
If exploited, this could result in loss of control over project resources, potentially leading to project delays or misuse of resources.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Upgrade to version 1.3.0 or later.
auth-bypasswebproject-management

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

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 vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Weaknesses

CWE-269

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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