CVE•Published 2026-10-06•Modified 2026-10-16•0 articles on news•4 live references•NVD data

CVE-2026-106497Linuxfoundation · Backstage_plugin-catalog-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 92% of all CVEs

Weaknesses (CWE)

CWE-178Improper Handling of Case Sensitivity CWE-863Incorrect Authorization

Description

Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary, an authenticated user could receive catalog entity data that policy authors intended to restrict. This issue is fixed in version 3.9.1.

Timeline

Published 2026-10-06

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-2026-106497

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Linuxfoundation Backstage Plugin-catalog-backend"

All exposed Linuxfoundation Backstage Plugin-catalog-backend instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Backstage Plugin-catalog-backend"

HTTP body or banner mentions "Backstage Plugin-catalog-backend" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-106497