CVE-2026-64646: fallo de gravedad media en vercel next.js
Next.js: Unbounded Server Action payload in Edge runtime
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.3epss 0.5%
Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10, requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive memory consumption if that Server Actions uses the Edge runtime. This issue has been fixed in versions 15.5.21 and 16.2.11.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Productos afectados
vercel · next.jsCVEs relacionadas — vercel next.js
En el mismo producto, de las más peligrosas a las menos.
CVE-2025-29927CRITICALAuthorization Bypass in Next.js MiddlewareEPSS 99.2%CVE-2024-46982HIGHCache Poisoning in next.jsEPSS 59.2%CVE-2021-43803HIGHUnexpected server crash in Next.jsEPSS 47.3%CVE-2026-44578HIGHNext.js: Server-side request forgery in applications using WebSocket upgradesEPSS 35.5%CVE-2024-34351HIGHNext.js Server-Side Request Forgery in Server ActionsEPSS 5.5%CVE-2024-51479HIGHAuthorization bypass in Next.jsEPSS 4.0%
Referencias
https://github.com/vercel/next.js/commit/57c31f724d746e86a9e8b92aa8be538a922446a4https://github.com/vercel/next.js/commit/9a4651e754f70b12e397694ffc41f44c3ba8cc17https://github.com/vercel/next.js/releases/tag/v15.5.21https://github.com/vercel/next.js/releases/tag/v16.2.11https://github.com/vercel/next.js/security/advisories/GHSA-4c39-4ccg-62r3