High

Plane: asset download endpoints scope file lookups to the workspace (not the project / published entity) → cross-project & unauthenticated private-file disclosure

Type: advisorySources: OSV

Plane is an open-source project management tool. Prior to 1.4.0, WorkspaceFileAssetEndpoint.get and WorkspaceAssetDownloadEndpoint.get resolve FileAsset records within a workspace without checking membership in the asset's project, allowing a workspace member to download assets from private projects when the asset UUID is known. EntityAssetEndpoint.get is a separate public-anchor endpoint that grants AllowAny access and scopes the lookup only to the anchor's workspace rather than its published entity or project. An unauthenticated caller who knows a valid anchor and an asset UUID can therefore retrieve issue-description or comment-description assets belonging to unpublished or private projects in that workspace. This issue is fixed in 1.4.0.

Products: Not specified
Affected versions: Not specified
Fixed versions: Not specified
CVEs: CVE-2026-105631
Confirmed fixed CVEs: Not specified
Updated in this feed: 2 Nov 2026, 20:03 UTC · Revision 1

Source evidence

Plane: asset download endpoints scope file lookups to the workspace (not the project / published entity) → cross-project & unauthenticated private-file disclosure

core-osv · Original source

Published 5 Oct 2026, 17:55 UTC

osv:CVE-2026-105631

Complete source record

{
  "id": "869aed3d8f6e5c7f31da38cf9ea58e7aee03906085e02696c0d094808d928fb9",
  "url": "https://osv.dev/vulnerability/CVE-2026-105631",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Plane: asset download endpoints scope file lookups to the workspace (not the project / published entity) → cross-project & unauthenticated private-file disclosure",
    "summary": "Plane is an open-source project management tool. Prior to 1.4.0, WorkspaceFileAssetEndpoint.get and WorkspaceAssetDownloadEndpoint.get resolve FileAsset records within a workspace without checking membership in the asset's project, allowing a workspace member to download assets from private projects when the asset UUID is known. EntityAssetEndpoint.get is a separate public-anchor endpoint that grants AllowAny access and scopes the lookup only to the anchor's workspace rather than its published entity or project. An unauthenticated caller who knows a valid anchor and an asset UUID can therefore retrieve issue-description or comment-description assets belonging to unpublished or private projects in that workspace. This issue is fixed in 1.4.0.",
    "evidence": "osv:CVE-2026-105631",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-105631",
      "aliases": [
        "CVE-2026-105631",
        "GHSA-85h2-mhcc-xfmw"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/makeplane/plane",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "917b23a6c16d93fc00cef67900eff2755e8b13f7"
                },
                {
                  "fixed": "4577dc3f7a6b5a198602b602a45c6b0abdc7204b"
                },
                {
                  "fixed": "e63f0c3b3404d669ae05dd9050aab72292f87e5c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.4.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "4577dc3f7a6b5a198602b602a45c6b0abdc7204b"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e63f0c3b3404d669ae05dd9050aab72292f87e5c"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "917b23a6c16d93fc00cef67900eff2755e8b13f7"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.4.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.3.1",
            "v1.3.0",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.0",
            "v1.0.0",
            "v0.28.0",
            "v0.27.1",
            "v0.27.0",
            "v0.26.1",
            "v0.26.0",
            "v0.25.3",
            "v0.25.2",
            "v0.25.1",
            "v0.25.0",
            "v0.24.0",
            "v0.23.1",
            "v0.23.0",
            "v0.22-dev",
            "v0.21-dev",
            "v0.20-dev",
            "v0.19-dev",
            "v0.18-dev",
            "v0.17-dev",
            "v0.16-dev",
            "v0.15.4-dev",
            "v0.15.3-hotfix",
            "v0.15.2-dev",
            "v0.15.1-dev",
            "v0.15-dev",
            "v0.14.2-dev",
            "v0.14.1-dev",
            "v0.14-dev",
            "v0.13.2-dev",
            "v0.13.1-dev",
            "v0.13-dev",
            "v0.12.2-dev",
            "v0.12.1-dev",
            "v0.12-dev",
            "v0.11-dev",
            "v0.10-dev",
            "v0.9-dev",
            "v0.8-dev",
            "v0.7.1-dev",
            "v0.7-dev",
            "v0.6-dev",
            "v0.5-dev",
            "v0.4-dev",
            "v0.3.1-dev",
            "v0.1-dev"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105631.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.180457348Z",
      "provider": "osv",
      "references": [
        "https://github.com/makeplane/plane/releases/tag/v1.4.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105631.json",
        "https://github.com/makeplane/plane/security/advisories/GHSA-85h2-mhcc-xfmw",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-105631",
        "https://github.com/makeplane/plane/commit/4577dc3f7a6b5a198602b602a45c6b0abdc7204b",
        "https://github.com/makeplane/plane/commit/e63f0c3b3404d669ae05dd9050aab72292f87e5c",
        "https://github.com/makeplane/plane/pull/9288",
        "https://github.com/makeplane/plane/pull/9372"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-639"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105631.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-105631",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489574,
  "published_at": "2026-10-05T17:55:56.166+00:00"
}