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Backstage: Incorrect authorization in search engine permission filtering

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-106562

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-106562

backstage

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

plugin-search-backend

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

plugin-search-backend-module-elasticsearch

Source reference: /containers/cna/affected/2/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "backstage",
    "product": "backstage",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.54.1"
      }
    ]
  },
  {
    "vendor": "@backstage",
    "product": "plugin-search-backend",
    "versions": [
      {
        "status": "affected",
        "version": "< 2.1.6"
      }
    ]
  },
  {
    "vendor": "@backstage",
    "product": "plugin-search-backend-module-elasticsearch",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.8.7"
      }
    ]
  }
]
Related CVEs
CVE-2026-106562

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#11978 · Revision 1
Added to Heist Feed
Publisher date
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