{"id":"EUVD-2026-94012","revision":"29264695ad07480d8f9c99b8d5565fa0","records":[{"revision":"29264695ad07480d8f9c99b8d5565fa0","observedAt":"2026-11-05T03:57:41.777+00:00","statement":{"source":"euvd","id":"EUVD-2026-94012","aliases":["CVE-2026-106492","GHSA-cq7v-rfgc-5c7v"],"title":"Backstage is an open framework for building developer portals. Prior to 0.16.1 and 0.17.8, the @backstage/backend-defaults package is affected by improper preservation of access restrictions during service credential delegation. An external…","description":"Backstage is an open framework for building developer portals. Prior to 0.16.1 and 0.17.8, the @backstage/backend-defaults package is affected by improper preservation of access restrictions during service credential delegation. An external service credential configured with access restrictions (e.g., read-only) could bypass those restrictions by routing requests through plugin delegation paths. This could allow a restricted service to perform operations beyond its intended scope, including write operations on plugins it was restricted to read-only access for. This issue is fixed in versions 0.16.1 and 0.17.8.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L","score":7.6,"severity":null}],"references":["https://github.com/backstage/backstage/security/advisories/GHSA-cq7v-rfgc-5c7v","https://github.com/backstage/backstage/commit/40346245c53e1bf26dee56601e95c5c4ab9cc124","https://github.com/backstage/backstage/commit/bc80ffdafbc92ff7b8c72347eace13cb8688fd33","https://github.com/backstage/backstage/releases/tag/v1.49.6","https://github.com/backstage/backstage/releases/tag/v1.54.6"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-94012","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 6, 2026, 8:48:05 PM","dateUpdated":"Oct 9, 2026, 1:51:07 AM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-94012","identifiers":["EUVD-2026-94012","CVE-2026-106492","GHSA-cq7v-rfgc-5c7v"]},"retained":false,"historicalAffected":[]}],"coverage":[]}