A AegiFlow
MEDIUMCVSS 4.4EPSS 0.3%

CVE-2026-106494

CVE-2026-106494 updated by NVD

Published
2026-10-07
Modified
2026-10-24
EPSS percentile
19%
Sources
github-advisory, nvd

Summary

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.

Affected packages

EcosystemPackageAffected versionsFixed versions
npm@backstage/backend-defaults—0.17.8

Remediation: Upgrade to 0.17.8 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.