{"cve":"CVE-2025-67716","nvd":{"published":"2025-12-11T01:16:00.890","modified":"2026-10-14T20:10:00.190","status":"Analyzed","description":"The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. Versions 4.9.0 through 4.12.1 contain an input-validation flaw in the returnTo parameter, which could allow attackers to inject unintended OAuth query parameters into the Auth0 authorization request. Successful exploitation may result in tokens being issued with unintended parameters. This issue is fixed in version 4.13.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N","score":5.7},"cwes":["CWE-184"],"references":["https://github.com/auth0/nextjs-auth0/commit/35eb321de3345ccf23e8c0d6f66c9f2f2f57d26c","https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-mr6f-h57v-rpj5"],"products":["auth0:nextjs-auth0"],"source":"nvd","synced_at":"2026-10-19T22:16:40.427100871+00:00"},"epss":{"cve":"CVE-2025-67716","score":0.00262,"percentile":0.17871,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-mr6f-h57v-rpj5","url":"https://osv.dev/vulnerability/GHSA-mr6f-h57v-rpj5","summary":"Improper Validation of Query Parameters in Auth0 Next.js SDK","modified":"2025-12-11T16:21:52.892228Z","packages":[{"ecosystem":"npm","name":"@auth0/nextjs-auth0","purl":"pkg:npm/%40auth0/nextjs-auth0","ranges":[">=4.9.0 <4.13.0"],"fixed":["4.13.0"]}]}],"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."]}