{"cve":"CVE-2026-75604","nvd":{"published":"2026-09-01T22:17:12.697","modified":"2026-09-09T21:09:13.080","status":"Deferred","description":"Next.js is a React framework for building full-stack web applications. From 13.4.0 until 15.5.24 and 16.3.3, Next.js applications using Pages Router or App Router without Cache Components on Windows-hosted servers do not consistently escape backslashes in route segments before constructing incremental-cache paths. In packages/next/src/shared/lib/router/utils/escape-path-delimiters.ts and packages/next/src/server/lib/incremental-cache/file-system-cache.ts, a remote request can supply encoded Windows path separators that traverse outside the intended cache root and expose private build data, including the server-reference-manifest encryption key. Disclosure of that key can enable remote code execution in the affected application. This issue is fixed in versions 15.5.24 and 16.3.3.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","score":9.0},"cwes":["CWE-22"],"references":["https://github.com/vercel/next.js/commit/968b9fcb26bdeb8e0a861a9df05361474666d51b","https://github.com/vercel/next.js/commit/b0f3460a92b955d3ca41fccff9a525a2b910fbf3","https://github.com/vercel/next.js/releases/tag/v15.5.24","https://github.com/vercel/next.js/releases/tag/v16.3.3","https://github.com/vercel/next.js/security/advisories/GHSA-p293-qw3h-jr36"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-75604","score":0.02105,"percentile":0.81742,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-p293-qw3h-jr36","url":"https://osv.dev/vulnerability/GHSA-p293-qw3h-jr36","summary":"Next.js: Unauthenticated Remote Code Execution on windows-hosted servers","modified":"2026-09-08T21:00:06.133833950Z","packages":[{"ecosystem":"npm","name":"next","purl":"pkg:npm/next","ranges":[">=13.4.0 <15.5.24"],"fixed":["15.5.24"]},{"ecosystem":"npm","name":"next","purl":"pkg:npm/next","ranges":[">=16.0.0 <16.3.3"],"fixed":["16.3.3"]}]}],"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."]}