Next.js: Unbounded Server Action payload in Edge runtime

中危 5.3CVE-2026-64646 · GHSA-4c39-4ccg-62r3 · Published 27/07/2026 · updated 24/10/2026

要点

CVE-2026-64646 是影响 next.js (vercel), next 的中危 (CVSS 5.3)漏洞。
未来 30 天内被利用的概率（EPSS）：0.52%，高于 44.4% 的漏洞。
修复：升级到 15.5.21, 16.2.11 或更高版本。

Package	Affected versions	Patched versions
next.js vercel	`≥ 13.0.0, < 15.5.21≥ 16.0.0, < 16.2.11`	`15.5.2116.2.11`
next npm	`≥ 13.0.0, < 15.5.21≥ 16.0.0, < 16.2.11`	`15.5.2116.2.11`

Description

Impact

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

Workarounds

If you cannot upgrade, ensure your hosting provider limits the request's body size. 5 MiB should be allowed at max by your hosting provider.

NVD description

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.

References

next.js 的其他漏洞

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Package

Affected versions

Patched versions

next.js

vercel

≥ 13.0.0, < 15.5.21≥ 16.0.0, < 16.2.11

15.5.2116.2.11

npm

≥ 13.0.0, < 15.5.21≥ 16.0.0, < 16.2.11

15.5.2116.2.11

Description

Impact

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

Workarounds

If you cannot upgrade, ensure your hosting provider limits the request's body size. 5 MiB should be allowed at max by your hosting provider.

NVD description

next.js 的其他漏洞

查看全部 →