CVE-2026-64643: falha de média gravidade em vercel next.js
Next.js: Unauthenticated Disclosure of Internal Server Function endpoints
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.3epss 0.5%
Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, Next.js applications using App Router, Server Actions (use server) or use cache endpoints can be disclosed bypassing any authentication on the pages where these endpoints are usually used. Server Action IDs can be disclosed to unauthenticated users via publicly served client artifacts (for example, static chunks containing action references). Affected users are applications using App Router and Server Actions. By itself, this disclosure is typically a recon/enumeration primitive; however, it can increase risk when combined with other weaknesses. 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:L/VI:N/VA:N/SC:N/SI:N/SA:N
Produtos afetados
vercel · next.jsCVEs relacionadas — vercel next.js
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Referências
https://github.com/vercel/next.js/commit/1b0c3ae912a3ad925c60065cc8d55b070fa8bcd3https://github.com/vercel/next.js/commit/ff12a6124e1504f17b62de948b8a553fdecaef7bhttps://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-955p-x3mx-jcvp