CVE•Published 2026-10-07•Modified 2026-10-16•0 articles on news•4 live references•NVD data

CVE-2026-106562Linuxfoundation · Backstage\/plugin-search-backend

Vulnerability data via NVD (ingested)

CVSS v3.1

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS percentile

Exploit Prediction Scoring System · top 91% of all CVEs

Weaknesses (CWE)

CWE-754Improper Check for Unusual or Exceptional Conditions CWE-863Incorrect Authorization

Description

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.

Timeline

Published 2026-10-07

Modified 2026-10-16

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-106562

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Linuxfoundation Backstage\/plugin-search-backend"

All exposed Linuxfoundation Backstage\/plugin-search-backend instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Backstage\/plugin-search-backend"

HTTP body or banner mentions "Backstage\/plugin-search-backend" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-106562