{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.4.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e1ef42023ab66b5e722a8750e1bc5ba0d413a3ee"
            },
            {
              "fixed": "917b23a6c16d93fc00cef67900eff2755e8b13f7"
            }
          ],
          "repo": "https://github.com/makeplane/plane",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-45hc-q4mw-jhxm"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-284"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105632.json"
  },
  "details": "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.",
  "id": "CVE-2026-105632",
  "modified": "2026-10-07T02:30:56.478502864Z",
  "published": "2026-10-05T17:57:22.672Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/makeplane/plane/releases/tag/v1.4.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105632.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/makeplane/plane/security/advisories/GHSA-45hc-q4mw-jhxm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105632"
    },
    {
      "type": "FIX",
      "url": "https://github.com/makeplane/plane/commit/e1ef42023ab66b5e722a8750e1bc5ba0d413a3ee"
    },
    {
      "type": "FIX",
      "url": "https://github.com/makeplane/plane/pull/9333"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Plane: Broken Access Control - joinProject GraphQL mutation allows self-join into private (secret) projects"
}