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.
{
"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"
}
]
}