Backstage: Incorrect authorization in scaffolder task listing

{
  "id": "b872a7090fc3d07999532ecd27db530631b8c2644d9abb3f9b30d8933dcf7f31",
  "url": "https://osv.dev/vulnerability/GHSA-7hfw-grcm-cqm6",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Backstage: Incorrect authorization in scaffolder task listing",
    "summary": "### Impact An authenticated internal user may be able to view metadata for scaffolder tasks outside the visibility intended by a deployment's permission policy. Stored task secrets are not included in the affected response, and no integrity or availability impact was identified. ### Patches Patched in `@backstage/plugin-scaffolder-backend` version `4.1.0` ### Workarounds - Restrict the scaffolder task-list endpoint at the ingress or authenticating proxy to users who are permitted to view all tasks. - Avoid placing sensitive values in template input parameters until the patched package is deployed.",
    "evidence": "osv:GHSA-7hfw-grcm-cqm6",
    "products": [
      {
        "name": {
          "value": "@backstage/plugin-scaffolder-backend",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "GHSA-7hfw-grcm-cqm6",
      "aliases": [
        "CVE-2026-106461",
        "GHSA-7hfw-grcm-cqm6"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.1.0"
                }
              ]
            }
          ],
          "package": {
            "name": "@backstage/plugin-scaffolder-backend",
            "purl": "pkg:npm/%40backstage/plugin-scaffolder-backend",
            "ecosystem": "npm"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-7hfw-grcm-cqm6/GHSA-7hfw-grcm-cqm6.json"
          }
        }
      ],
      "modified": "2026-10-07T18:15:13.179064809Z",
      "provider": "osv",
      "references": [
        "https://github.com/backstage/backstage/security/advisories/GHSA-7hfw-grcm-cqm6",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-106461",
        "https://github.com/backstage/backstage/commit/0253c50673f2832b0b1e9f73348186434e7bd09e",
        "https://github.com/backstage/backstage",
        "https://github.com/backstage/backstage/releases/tag/v1.54.6"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "severity": "MODERATE",
        "github_reviewed": true,
        "nvd_published_at": "2026-10-06T21:17:16Z",
        "github_reviewed_at": "2026-10-07T17:58:55Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-106461",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 97171,
  "published_at": "2026-10-07T17:58:55+00:00"
}