Disclosure summary
### 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`
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
GitHub Reviewed Security Advisories · GHSA-7649-wm97-w3j3
Open original source · Updated Oct 07, 2026
Backstage: Improper input validation in cloud storage URL readers
Source severity: MEDIUM / 0
| Ecosystem | Package | Affected range | First patched |
|---|---|---|---|
| npm | @backstage/backend-defaults | < 0.17.8 | 0.17.8 |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Reviewed advisory
PUBLISHED 2026-10-07T13:59:38-04:00
MODIFIED 2026-10-07T13:59:39-04:00
INGESTED 2026-10-08T12:30:38-04:00