{"id":"CVE-2026-94482","aliases":["GHSA-p3m5-59mp-jv5r"],"title":"Next.js: Denial of Service in App Router using Server Actions","summary":"Next.js: Denial of Service in App Router using Server Actions","severity":"high","cvss":8.2,"cwe":["CWE-770"],"vendor":"next","product":"next","ecosystem":"npm","affected":["next >= 13.0.0, <= 15.5.27","next >= 16.0.0, <= 16.4.0"],"patched":["next 15.5.28","next 16.4.1"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T15:50:35Z","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-p3m5-59mp-jv5r","references":[{"url":"https://github.com/vercel/next.js/security/advisories/GHSA-p3m5-59mp-jv5r"},{"url":"https://github.com/vercel/next.js/releases/tag/v15.5.28"},{"url":"https://github.com/vercel/next.js/releases/tag/v16.4.1"},{"url":"https://github.com/advisories/GHSA-p3m5-59mp-jv5r"}],"tags":["ghsa","npm","cve.org"],"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","cvssSource":"cna","ingestedAt":"2026-10-22T22:00:50.260Z","slug":"CVE-2026-94482","body":"## Overview\n\n## Impact\n\nCrafted requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive CPU usage blocking processing of further requests in the same process.\n\n## Workarounds\n\nNo workaround exists besides upgrading. Applications using Pages Router or not using Server Actions are not vulnerable.\n\n## Affected packages\n\n- `next >= 13.0.0, <= 15.5.27`\n- `next >= 16.0.0, <= 16.4.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `next 15.5.28`\n- `next 16.4.1`","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}