{"id":"EUVD-2026-94007","revision":"1d43f04f2439439bbfc2046ec4cb12c2","records":[{"revision":"1d43f04f2439439bbfc2046ec4cb12c2","observedAt":"2026-10-30T01:52:26.879+00:00","statement":{"source":"euvd","id":"EUVD-2026-94007","aliases":["CVE-2026-106488","GHSA-826h-28h9-65hg"],"title":"Backstage is an open framework for building developer portals. Prior to 0.4.20, the @backstage/plugin-auth-backend-module-oidc-provider package is affected by improper authentication in the oidc provider. Deployments using OIDC email-based …","description":"Backstage is an open framework for building developer portals. Prior to 0.4.20, the @backstage/plugin-auth-backend-module-oidc-provider package is affected by improper authentication in the oidc provider. Deployments using OIDC email-based identity resolution with a provider that permits unverified email addresses may allow an authenticated provider user to assume another catalog identity. This may grant access and permissions associated with that user. No direct availability impact is demonstrated. This issue is fixed in version 0.4.20.","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:H/I:H/A:N","score":8.1,"severity":null}],"references":["https://github.com/backstage/backstage/security/advisories/GHSA-826h-28h9-65hg","https://github.com/backstage/backstage/commit/1b1f05e82161aaabc226c1d7d498d746956bf942","https://github.com/backstage/backstage/releases/tag/v1.54.6"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-94007","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 6, 2026, 8:38:18 PM","dateUpdated":"Oct 7, 2026, 6:23:28 PM"},"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-2026-94007","identifiers":["EUVD-2026-94007","CVE-2026-106488","GHSA-826h-28h9-65hg"]},"retained":false,"historicalAffected":[]}],"coverage":[]}