{"id":"CVE-2025-59471","aliases":["GHSA-9g9p-9gw9-jx7f"],"url":"https://o3.security/vulnerability/CVE-2025-59471","summary":"Next.js self-hosted applications vulnerable to DoS via Image Optimizer remotePatterns configuration","details":"A denial of service vulnerability exists in self-hosted Next.js applications that have `remotePatterns` configured for the Image Optimizer. The image optimization endpoint (`/_next/image`) loads external images entirely into memory without enforcing a maximum size limit, allowing an attacker to cause out-of-memory conditions by requesting optimization of arbitrarily large images. This vulnerability requires that `remotePatterns` is configured to allow image optimization from external domains and that the attacker can serve or control a large image on an allowed domain.\r\n\r\nStrongly consider upgrading to 15.5.10 or 16.1.5 to reduce risk and prevent availability issues in Next applications.","published":"2026-01-26T21:43:05.094Z","modified":"2026-08-12T03:51:25.847256503Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"next","fixedVersion":"15.5.10"},{"ecosystem":"npm","name":"next","fixedVersion":"16.1.5"}],"fix":{"url":"https://github.com/vercel/next.js/commit/500ec83743639addceaede95e95913398975156c","label":"vercel/next.js@500ec83"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59471.json"},{"type":"ADVISORY","url":"https://github.com/vercel/next.js/security/advisories/GHSA-9g9p-9gw9-jx7f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59471"},{"type":"WEB","url":"https://github.com/vercel/next.js/commit/500ec83743639addceaede95e95913398975156c"},{"type":"WEB","url":"https://github.com/vercel/next.js/commit/e5b834d208fe0edf64aa26b5d76dcf6a176500ec"},{"type":"PACKAGE","url":"https://github.com/vercel/next.js"},{"type":"WEB","url":"https://github.com/vercel/next.js/releases/tag/v15.5.10"},{"type":"WEB","url":"https://github.com/vercel/next.js/releases/tag/v16.1.5"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:25.847256503Z"}}