Backstage: Catalog unprocessed read endpoints allow authenticated cross-owner data access without permission checks — CVE-2026-44374

Summary

### Impact The unprocessed entities read endpoints in `@backstage/plugin-catalog-backend-module-unprocessed` do not enforce permission authorization checks. Any authenticated user can access unprocessed entity records regardless of ownership. This is an information disclosure vulnerability affecting Backstage installations using this module. ### Patches This is patched in…

Product

npm: @backstage/plugin-catalog-unprocessed-entities-common | npm: @backstage/plugin-catalog-unprocessed-entities | npm: @backstage/plugin-catalog-backend-module-unprocessed

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Related advisories