CVE-2026-106562
Published:October 07, 2026
Updated:October 13, 2026
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.
Affected Packages
https://github.com/backstage/backstage.git (GITHUB):
Affected version(s) >=v1.0.0 <v1.54.1Fix Suggestion:
Update to version v1.54.1@backstage/plugin-search-backend (NPM):
Affected version(s) >=0.1.2 <2.1.6Fix Suggestion:
Update to version 2.1.6@backstage/plugin-search-backend-module-elasticsearch (NPM):
Affected version(s) >=0.0.1 <1.8.7Fix Suggestion:
Update to version 1.8.7Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.20