Medium 4.3Published Oct 7, 2026

CVE-2026-106562Backstage: Incorrect authorization in search engine permission filtering

Updated under an hour ago (Oct 28, 2026, 5:10 AM ET)

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It affects backstage and 5 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-754, CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Oct 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

backstage backstage backstage:backstage (from the name)	before 1.54.1	CNA record
@backstage plugin-search-backend backstage:plugin_search_backend (from the name)	before 2.1.6	CNA record
@backstage plugin-search-backend-module-elasticsearch backstage:plugin_search_backend_module_elasticsearch (from the name)	before 1.8.7	CNA record
linuxfoundation backstage/plugin-search-backend linuxfoundation:backstage/plugin-search-backend	before 2.1.6	NVD
linuxfoundation backstage/plugin-search-backend-module-elasticsearch linuxfoundation:backstage/plugin-search-backend-module-elasticsearch	before 1.8.7	NVD
linuxfoundation backstage linuxfoundation:backstage	before 1.54.1	NVD

References

References

https://github.com/backstage/backstage/security/advisories/GHSA-9325-vq29-gp3v	x-refsource-confirm, mitigation, vendor-advisory
https://github.com/backstage/backstage/commit/2d5d3e77d630455d6d48cfa8f31fd3c126fd6f29	x-refsource-misc, patch
https://github.com/backstage/backstage/releases/tag/v1.54.1	x-refsource-misc, patch, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.