CVE-2026-106494
mediumpriority · track · 20EPSS 0.003 · 23 %ileUSEPSS · scored 2026-10-27
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.
cvss
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base score 0–10 · higher = more severe · hover a vector to decode
ssvc
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weaknesses
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affected products (3)
Products and version ranges known to be affected.
- linuxfoundation backstage/backend defaults< 0.17.8nvdUScpe:2.3:a:linuxfoundation:backstage\/backend_defaults:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-7649-wm97-w3j3Backstage: Improper input validation in cloud storage URL readers2026-10-07ghsa · osvUS
### 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`
sources
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references (3) nvd
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