GHSA-7649-wm97-w3j3Published

Backstage: Improper input validation in cloud storage URL readers

Exact source revision recorded 24 Oct 2026 13:17:17 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

osv · GHSA-7649-wm97-w3j3

Published

### 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 published: 7 Oct 2026 17:59:38 UTC
Source modified: 7 Oct 2026 18:15:12 UTC
Observed here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N

Publisher rating · MODERATE