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GHSA-7649-wm97-w3j3

Backstage: Improper input validation in cloud storage URL readers

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-106494

Packages

EcosystemPackageAffectedFixed in
npm @backstage/backend-defaults < 0.17.8 0.17.8

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact An attacker with write access to a cloud storage bucket used by Backstage could craft object names that could collide with protected files in the output directory. In certain deployment configurations, this could lead to content injection. ### Patches Patched in `@backstage/backend-defaults` version `0.17.8`

References

External links from the advisory. They lead to third-party sites.