{"id":"CVE-2026-64645","revision":"b84d544ab7dd49ceb8586bd0214f5e6e","records":[{"revision":"b84d544ab7dd49ceb8586bd0214f5e6e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64645","aliases":[],"title":"Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname","description":"Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, a\n rewrites() or redirects() rule that builds its external destination hostname from request-controlled input can be pointed at an arbitrary hostname, regardless of the rule's hostname suffix. For a rewrite, Next.js proxies the request to that arbitrary host and serves the response from the application's origin, leading to Server-Side Request forgery. A redirects() rule configured this way is vulnerable to an Open Redirect. This issue has been fixed in versions 15.5.21 and 16.2.11.","state":0,"publishedAt":"2026-07-27T17:37:07.695+00:00","modifiedAt":"2026-07-28T14:02:21.877+00:00","affected":[{"ecosystem":"Vendor product","name":"next.js","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"vercel\",\n                    \"product\": \"next.js\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 12.0.0 < 15.5.21\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 16.0.0, < 16.2.11\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N","score":8.3,"severity":"HIGH"}],"references":["https://github.com/vercel/next.js/security/advisories/GHSA-p9j2-gv94-2wf4","https://github.com/vercel/next.js/commit/35f501357e9b0fe7c950b0d6aa8fcf5343f707e9","https://github.com/vercel/next.js/commit/d3033266c6dff23f7be71e19341fe3a8c6e2c599","https://github.com/vercel/next.js/releases/tag/v15.5.21","https://github.com/vercel/next.js/releases/tag/v16.2.11"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64645","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64645","identifiers":["CVE-2026-64645"]},"retained":false,"historicalAffected":[]}],"coverage":[]}