CVE-2026-106492
CVE-2026-106492 · Backstage: Improper preservation of access restrictions during service credential delegation
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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.
CVSS 7.6 · Hoch · EPSS 0,2% · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: node
Betroffene Produkte und Versionen
backstage
- Softwareversionen
- < 1.49.6: Betroffen
- >= 1.50.0-next.0, < 1.54.6: Betroffen
Keine Korrektur veröffentlicht
backend-defaults
- Softwareversionen
- < 0.16.1: Betroffen
- >= 0.17.0, < 0.17.8: Betroffen
Keine Korrektur veröffentlicht
@backstage/backend-defaults npm
- Betroffene Versionsbereiche
- SEMVER: < 0.17.8
Auf 0.17.8 aktualisieren
Originalquellen
- https://github.com/backstage/backstage/security/advisories/GHSA-cq7v-rfgc-5c7v
- https://github.com/backstage/backstage/commit/40346245c53e1bf26dee56601e95c5c4ab9cc124
- https://github.com/backstage/backstage/commit/bc80ffdafbc92ff7b8c72347eace13cb8688fd33
- https://github.com/backstage/backstage/releases/tag/v1.49.6
- https://github.com/backstage/backstage/releases/tag/v1.54.6
- https://nvd.nist.gov/vuln/detail/CVE-2026-106492