CVE-2026-106494

MediumCVSS 4.9/10Last modified Oct 22, 2026

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.

Metrics

CVSS 3.1 4.9/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-22CWE-73

Affected software

No affected versions have been published.

Timeline

Published
Oct 6, 2026
Last modified
Oct 22, 2026
NVD status
Analyzed

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CVE-2026-106494: Medium severity, CVSS 4.9 | Vulnix