Incorrect Authorization Affecting @backstage/plugin-scaffolder-backend package, versions <4.1.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published11 Oct 2026
- disclosed7 Oct 2026
- creditUnknown
Introduced: 7 Oct 2026
NewCVE-2026-106461 (opens in a new tab)How to fix?
Upgrade @backstage/plugin-scaffolder-backend to version 4.1.0 or higher.
Overview
@backstage/plugin-scaffolder-backend is a The Backstage backend plugin that helps you create new things
Affected versions of this package are vulnerable to Incorrect Authorization via the getAuthorizeConditions function in checkPermissions.ts, which fails to enforce DENY authorization decisions when evaluating scaffolder task read permissions. An authenticated attacker can read scaffolder tasks that they have been explicitly denied access to, because the function only handles CONDITIONAL results and silently allows access when the authorization result is DENY.