{"id":"CVE-2026-106494","revision":"3e439fdf88b249d58982cc349cc1970f","records":[{"revision":"3e439fdf88b249d58982cc349cc1970f","observedAt":"2026-10-25T04:17:41.466+00:00","statement":{"source":"nvd","id":"CVE-2026-106494","aliases":[],"title":"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 …","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.","state":0,"publishedAt":"2026-10-06T21:17:18.52+00:00","modifiedAt":"2026-10-22T13:03:53.5+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","score":4.4,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","score":4.9,"severity":"MEDIUM"}],"references":["https://github.com/backstage/backstage/commit/14e925ce5b905dd8daa64c3009722febda76034c","https://github.com/backstage/backstage/releases/tag/v1.54.6","https://github.com/backstage/backstage/security/advisories/GHSA-7649-wm97-w3j3"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106494","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-22","CWE-73"],"productCriteria":["cpe:2.3:a:linuxfoundation:backstage\\/backend_defaults:*:*:*:*:*:node.js:*:*","cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-10-06T21:17:18.520","lastModified":"2026-10-22T13:03:53.500"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-106494","identifiers":["CVE-2026-106494"]},"retained":false,"historicalAffected":[]}],"coverage":[]}