Incorrect Authorization Affecting @backstage/plugin-catalog-backend package, versions <3.9.1


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.21% (11th percentile)

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  • Snyk IDSNYK-JS-BACKSTAGEPLUGINCATALOGBACKEND-20825105
  • published11 Oct 2026
  • disclosed7 Oct 2026
  • creditUnknown

Introduced: 7 Oct 2026

NewCVE-2026-106496  (opens in a new tab)
CWE-22  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade @backstage/plugin-catalog-backend to version 3.9.1 or higher.

Overview

@backstage/plugin-catalog-backend is a The Backstage backend plugin that provides the Backstage catalog

Affected versions of this package are vulnerable to Incorrect Authorization in DefaultCatalogProcessingOrchestrator during catalog processing, where the type field of a registered location entity is not validated against the configured allowed location types. An authenticated attacker can register a location entity with an arbitrary type value, bypassing the intended type restrictions and causing unintended location types to be processed by the catalog backend.

CVSS Base Scores

version 4.0
version 3.1