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": [
{
"range": [
{
"fixed": "2.1.6"
},
{
"fixed": "1.8.7"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
}
]
}
]
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.54.1"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "2d5d3e77d630455d6d48cfa8f31fd3c126fd6f29"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v1.54.1",
"range": [
{
"fixed": "54df7613f80dec469f63f5882af31b9469b60c43"
}
],
"source": "REFERENCES_TAG"
}
]
}