CVE-2026-106494 — Backstage: Improper input validation in cloud storage URL readers
Backstage is an open framework for building developer portals. Prior to 0.17.8, the @backstage/backend-defaults package is affected by improper input validation in cloud storage…
Published: 2026-10-06 · CVSS: 4.4 · CVSS 3.1
Backstage is an open framework for building developer portals. Prior to 0.17.8, the @backstage/backend-defaults package is affected by improper input validation in cloud storage url readers. 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. This issue is fixed in version 0.17.8.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7