makeplane Plane up to 1.3.x Resolver joinProject privileges management

Summaryinfo

A vulnerability described as critical has been identified in makeplane Plane up to 1.3.x. The impacted element is the function joinProject of the component Resolver. Such manipulation leads to privileges management. This vulnerability is traded as CVE-2026-105632. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in makeplane Plane up to 1.3.x. It has been rated as critical. Affected by this issue is the function joinProject of the component Resolver. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Plane is an open-source project management tool. Prior to 1.4.0, the GraphQL joinProject mutation lets any workspace member add themselves to any project in that workspace including network=0 (secret/private) projects they were never invited to and grants them a full Member role (read + write). The resolver checks only workspace-level membership/role and never checks the target project's visibility (network). This collapses project-level tenant isolation within a workspace: a low-privilege member can read and modify confidential data in every private project. This issue is fixed in 1.4.0.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-105632 since 10/05/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 1.4.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-92546). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• makeplane

Name

• Plane

Version

• 1.0
• 1.1
• 1.2
• 1.3

Website

• Product: https://github.com/makeplane/plane/

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Once again VulDB remains the best source for vulnerability data.

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