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CVE PROGRAM SOURCE RECORD7.6 High

CVE-2026-106492

Backstage: Improper preservation of access restrictions during service credential delegation

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Backstage is an open framework for building developer portals. Prior to 0.16.1 and 0.17.8, the @backstage/backend-defaults package is affected by improper preservation of access restrictions during service credential delegation. An external service credential configured with access restrictions (e.g., read-only) could bypass those restrictions by routing requests through plugin delegation paths. This could allow a restricted service to perform operations beyond its intended scope, including write operations on plugins it was restricted to read-only access for. This issue is fixed in versions 0.16.1 and 0.17.8.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

backstage backstage

  • < 1.49.6affected
  • >= 1.50.0-next.0, < 1.54.6affected

@backstage backend-defaults

  • < 0.16.1affected
  • >= 0.17.0, < 0.17.8affected

References