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CVE-2026-106492

Backstage: Improper preservation of access restrictions during service credential delegation PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
backstage / backstageaffected < 1.49.6; affected >= 1.50.0-next.0, < 1.54.6
@backstage / backend-defaultsaffected < 0.16.1; affected >= 0.17.0, < 0.17.8

CWE

CWE-269, CWE-863

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.