{"cve":"CVE-2026-106460","nvd":{"published":"2026-10-06T21:17:16.707","modified":"2026-10-09T02:17:00.153","status":"Undergoing Analysis","description":"Backstage is an open framework for building developer portals. From 0.3.0 until 0.6.15 and 0.7.5, the @backstage/plugin-auth-node package did not consistently honor explicit negative email verification during shared OAuth profile normalization. The affected paths include a selected profile email marked verified: false, a matching raw provider email marked email_verified: false, and an email obtained only from an ID token marked email_verified: false. Exploitation requires an admitted identity-provider user who can supply or change an unverified email and a deployment that uses the selected profile email to resolve catalog identities. The verification metadata must apply to the selected email; an absent email_verified claim alone is not affected. In an affected configuration, the user may assume another catalog identity and obtain its associated access and permissions. This issue is fixed in versions 0.6.15 and 0.7.5.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","score":6.8},"cwes":["CWE-287"],"references":["https://github.com/backstage/backstage/commit/507e65ab9160aae6b602513dbfaebdd6be0ca8bb","https://github.com/backstage/backstage/commit/f0a43dacd1b501064da042b43eab9c1e06371d38","https://github.com/backstage/backstage/commit/fc5e30aba8ea7282ed3658c3b985cec71051cf9d","https://github.com/backstage/backstage/releases/tag/v1.49.7","https://github.com/backstage/backstage/releases/tag/v1.54.7"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:58:01.639778232+00:00"},"epss":{"cve":"CVE-2026-106460","score":0.00314,"percentile":0.24068,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-xm5q-p7w3-x6cp","url":"https://osv.dev/vulnerability/GHSA-xm5q-p7w3-x6cp","summary":"Backstage: Explicit negative email verification can be ignored during shared OAuth profile normalization","modified":"2026-10-07T20:30:06.837006795Z","packages":[{"ecosystem":"npm","name":"@backstage/plugin-auth-node","purl":"pkg:npm/%40backstage/plugin-auth-node","ranges":[">=0.3.0 <0.6.15"],"fixed":["0.6.15"]},{"ecosystem":"npm","name":"@backstage/plugin-auth-node","purl":"pkg:npm/%40backstage/plugin-auth-node","ranges":[">=0.7.0 <0.7.5"],"fixed":["0.7.5"]}]}],"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."]}