{"cve":"CVE-2026-106493","nvd":{"published":"2026-10-06T21:17:18.370","modified":"2026-10-22T13:13:46.153","status":"Analyzed","description":"Backstage is an open framework for building developer portals. Prior to 1.54.6, cloud storage catalog providers did not sufficiently validate object paths. A principal able to create or rename objects in a configured Azure Blob Storage or AWS S3 catalog source could cause catalog descriptors to be read from outside the intended storage boundary, limited to locations reachable with the backend's configured credentials. This issue is fixed in 1.54.6.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N","score":4.1},"cwes":["CWE-22"],"references":["https://github.com/backstage/backstage/commit/47ddbd8b4a3efd812309f759c38f4877fbd9e5ff","https://github.com/backstage/backstage/releases/tag/v1.54.6","https://github.com/backstage/backstage/security/advisories/GHSA-xvh9-35w9-42m4"],"products":["linuxfoundation:backstage","linuxfoundation:backstage\\/backend-defaults","linuxfoundation:backstage\\/plugin-catalog-backend-module-aws","linuxfoundation:backstage\\/plugin-catalog-backend-module-azure"],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-106493","score":0.00276,"percentile":0.19868,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-xvh9-35w9-42m4","url":"https://osv.dev/vulnerability/GHSA-xvh9-35w9-42m4","summary":"Backstage: Cloud storage catalog locations may cross configured storage boundaries","modified":"2026-10-07T18:15:11.174792016Z","packages":[{"ecosystem":"npm","name":"@backstage/plugin-catalog-backend-module-azure","purl":"pkg:npm/%40backstage/plugin-catalog-backend-module-azure","ranges":["<0.3.21"],"fixed":["0.3.21"]},{"ecosystem":"npm","name":"@backstage/plugin-catalog-backend-module-aws","purl":"pkg:npm/%40backstage/plugin-catalog-backend-module-aws","ranges":["<0.4.27"],"fixed":["0.4.27"]},{"ecosystem":"npm","name":"@backstage/backend-defaults","purl":"pkg:npm/%40backstage/backend-defaults","ranges":["<0.17.8"],"fixed":["0.17.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}