Medium 5.3Published Jul 27, 2026

CVE-2026-64646Next.js is a React framework for building full-stack web applications.

Updated under an hour ago (2026-10-19 11:10 UTC)

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It affects vercel next.js. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for vercel next.js

Exploited in the last 30 days

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: 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jul 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

vercel next.js vercel:next.js	from 13.0.0 before 15.5.21; from 16.0.0 before 16.2.11	NVD

References

https://github.com/vercel/next.js/commit/57c31f724d746e86a9e8b92aa8be538a922446a4patch
https://github.com/vercel/next.js/commit/9a4651e754f70b12e397694ffc41f44c3ba8cc17patch
https://github.com/vercel/next.js/releases/tag/v15.5.21product, release-notes
https://github.com/vercel/next.js/releases/tag/v16.2.11product, release-notes
https://github.com/vercel/next.js/security/advisories/GHSA-4c39-4ccg-62r3vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.