{"id":"CVE-2026-105632","published":"2026-10-05T18:17:36.593","lastModified":"2026-10-05T20:17:11.050","description":"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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-284"],"vendors":[],"products":[],"references":[{"url":"https://github.com/makeplane/plane/commit/e1ef42023ab66b5e722a8750e1bc5ba0d413a3ee","tags":[]},{"url":"https://github.com/makeplane/plane/pull/9333","tags":[]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-45hc-q4mw-jhxm","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-45hc-q4mw-jhxm","tags":[]}],"exploitRefs":[{"url":"https://github.com/makeplane/plane/commit/e1ef42023ab66b5e722a8750e1bc5ba0d413a3ee","tags":[]},{"url":"https://github.com/makeplane/plane/pull/9333","tags":[]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-45hc-q4mw-jhxm","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-45hc-q4mw-jhxm","tags":[]}],"hasPoc":true,"ai":null}