CVE-2026-106494
MEDIUM
NVD
CVSS Score
4.4
Severity
MEDIUM
Published
Oct 06, 2026
Vendor
unknown
Description
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.