{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.54.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2d5d3e77d630455d6d48cfa8f31fd3c126fd6f29"
            },
            {
              "fixed": "54df7613f80dec469f63f5882af31b9469b60c43"
            }
          ],
          "repo": "https://github.com/backstage/backstage",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9325-vq29-gp3v"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-754",
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106562.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "2.1.6"
          },
          {
            "fixed": "1.8.7"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Backstage is an open framework for building developer portals. Prior to 2.1.6 in @backstage/plugin-search-backend and 1.8.7 in @backstage/plugin-search-backend-module-elasticsearch, search engine permission filtering could return documents denied by policy. An authenticated Backstage user subject to a DENY policy for search document types could receive unauthorized results in deployments with permission.enabled set to true and an Elasticsearch or OpenSearch backend. This issue is fixed in @backstage/plugin-search-backend 2.1.6 and @backstage/plugin-search-backend-module-elasticsearch 1.8.7.",
  "id": "CVE-2026-106562",
  "modified": "2026-10-09T02:31:00.729172785Z",
  "published": "2026-10-07T14:54:13.183Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/backstage/backstage/releases/tag/v1.54.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106562.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/backstage/backstage/security/advisories/GHSA-9325-vq29-gp3v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-106562"
    },
    {
      "type": "FIX",
      "url": "https://github.com/backstage/backstage/commit/2d5d3e77d630455d6d48cfa8f31fd3c126fd6f29"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Backstage: Incorrect authorization in search engine permission filtering"
}