PT-2026-63563 · Npm · Next

CVE-2026-64648 · Publicado 2026-07-22 · Atualizado 2026-07-22

OSV

CVSS v4.0

6.0

Média

Vetor base

AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Impact

A server-side fetch with a request body may return a cached response body from a different request to the same URL but different body. Confidential data in the POST's response body would then leak to unauthorized requests. Though the request itself will not be deduped.

This only applies to fetch calls with a request that has a different init than the one passed to fetch. Safe: fetch(new Request(init), init) Unsafe: fetch(new Request(init), aDifferentInit)

Workarounds

No workaround exists besides upgrading. Applications using Pages Router are not vulnerable.

Correção

Enumeração de Fraquezas

CWE-524

Identificadores relacionados

CVE-2026-64648

GHSA-68G3-V927-F742

Produtos afetados

Next

Referências · 7

• https://github.com/vercel/next.js/commit/73b94872bc343d09494b50394d8c08eb9fc8e56a · Nota
• https://github.com/vercel/next.js/commit/062f66700b52a5d6bba2c0605d55577ab7ad262c · Nota
• https://github.com/vercel/next.js/security/advisories/GHSA-68g3-v927-f742 · Nota
• https://github.com/vercel/next.js/releases/tag/v16.2.11 · Nota
• https://github.com/vercel/next.js · Nota
• https://github.com/vercel/next.js/releases/tag/v15.5.21 · Nota
• https://osv.dev/vulnerability/GHSA-68g3-v927-f742 · Aviso do Fabricante