CVE-2026-106562
Backstage: Incorrect authorization in search engine permission filtering
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-754 CWE-863 |
| Vendor | backstage |
| Product | backstage |
| Published | Oct 7, 2026 |
| Last Updated | Oct 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
backstage / backstage
< 1.54.1
@backstage / plugin-search-backend
< 2.1.6
@backstage / plugin-search-backend-module-elasticsearch
< 1.8.7