{"id":"CVE-2026-94484","aliases":["GHSA-mcj8-r9mp-w47p"],"url":"https://o3.security/vulnerability/CVE-2026-94484","summary":"Next.js: Cache poisoning in Next.js SSG/ISR rendering leads to cross-user content substitution and persistent denial of service","details":"Next.js is a React framework for building full-stack web applications. From 15.0.0 until 15.5.27 and 16.3.8, applications with a root-level catch-all page and statically generated or Incremental Static Regeneration routes can use a shared response cache key that is insufficiently scoped to the source route. A single unauthenticated crafted request can poison that cache, causing cross-user content substitution or persistent denial of service until the poisoned entry is revalidated or replaced. This issue is fixed in versions 15.5.27 and 16.3.8.","published":"2026-10-02T15:26:48.417Z","modified":"2026-10-21T02:31:01.916298934Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"next","fixedVersion":"16.3.8"},{"ecosystem":"npm","name":"next","fixedVersion":"15.5.27"}],"fix":{"url":"https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8","label":"vercel/next.js@52c94ab"},"references":[{"type":"WEB","url":"https://github.com/vercel/next.js/releases/tag/v15.5.27"},{"type":"WEB","url":"https://github.com/vercel/next.js/releases/tag/v16.3.8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94484.json"},{"type":"ADVISORY","url":"https://github.com/vercel/next.js/security/advisories/GHSA-mcj8-r9mp-w47p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94484"},{"type":"FIX","url":"https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8"},{"type":"FIX","url":"https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52"},{"type":"PACKAGE","url":"https://github.com/vercel/next.js"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:31:01.916298934Z"}}