{"schema":"threatline.record/2","record":{"id":"CVE-2026-107369","aliases":["GHSA-5vvp-h2v6-59j6"],"summary":"Improper Validation of Post-Login Redirect URL in nextjs-auth0","details":"The auth0/nextjs-auth0 SDK validates that the returnTo parameter is a same-origin URL. The SDK then stores this value and, in a later step, reconstructs it for the post-authentication redirect. The reconstruction logic can produce a URL that browsers interpret as an absolute or scheme-relative path, leading to a redirect to an unintended domain.","categories":["Unclassified"],"product":"nextjs-auth0","vendor":"Auth0","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107369","source_modified_at":"2026-10-14T18:41:32.403Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"nextjs-auth0","vendor":"Auth0","versions":[{"version":"0","status":"affected","lessThan":"4.32.0","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"GitHub Advisory Database","source_url":"https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-5vvp-h2v6-59j6","source_modified_at":"2026-10-13T20:04:48Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"ecosystem":"npm","name":"@auth0/nextjs-auth0"},"range":"< 4.32.0"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107369","source_modified_at":"2026-10-14T18:41:32.403Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"nextjs-auth0","ecosystem":null},"version":"4.32.0","basis":"first unaffected version stated in the CVE record"},{"source":"GitHub Advisory Database","source_url":"https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-5vvp-h2v6-59j6","source_modified_at":"2026-10-13T20:04:48Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"ecosystem":"npm","name":"@auth0/nextjs-auth0"},"version":"4.32.0"}],"cvss":6.1,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00225,"percentile":0.12462,"score_date":"2026-10-23"},"published_at":"2026-10-13T20:08:00.543Z","modified_at":"2026-10-14T18:41:32.403Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-107369","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T18:41:32.403Z"},{"source":"GitHub Advisory Database","url":"https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-5vvp-h2v6-59j6","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T20:04:48Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-107369","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://trust.okta.com/security-advisories/improper-validation-of-post-login-redirect-url-in-nextjs-auth0-cve-2026-107369"},{"source":"CVE List","url":"https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-5vvp-h2v6-59j6"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-14T18:41:22.614149Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-14T18:41:32.403Z","content_hash":"0c139f969839f34ed0c527f794f3f589e8eb4757854526bfd77cd07558b3a866"}}