{"id":"CVE-2026-44578","revision":"94ca27bb62004a5f9e19fdd09e3f9803","records":[{"revision":"94ca27bb62004a5f9e19fdd09e3f9803","observedAt":"2026-10-25T10:17:27.754+00:00","statement":{"source":"nvd","id":"CVE-2026-44578","aliases":[],"title":"Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted We…","description":"Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requests. An attacker can cause the server to proxy requests to arbitrary internal or external destinations, which may expose internal services or cloud metadata endpoints. Vercel-hosted deployments are not affected. This vulnerability is fixed in 15.5.16 and 16.2.5.","state":0,"publishedAt":"2026-05-13T18:16:17.99+00:00","modifiedAt":"2026-08-13T13:19:04.217+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":8.6,"severity":"HIGH"},{"system":"CVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":8.6,"severity":"HIGH"}],"references":["https://github.com/vercel/next.js/security/advisories/GHSA-c4j6-fc7j-m34r","https://access.redhat.com/errata/RHSA-2026:34608","https://access.redhat.com/errata/RHSA-2026:37272","https://access.redhat.com/errata/RHSA-2026:40974","https://access.redhat.com/errata/RHSA-2026:54435","https://access.redhat.com/security/cve/CVE-2026-44578","https://bugzilla.redhat.com/show_bug.cgi?id=2477187","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44578.json"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44578","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Modified","weaknesses":["CWE-918"],"productCriteria":["cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-05-13T18:16:17.990","lastModified":"2026-08-13T13:19:04.217"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-44578","identifiers":["CVE-2026-44578"]},"retained":false,"historicalAffected":[]}],"coverage":[]}