CVE•Published 2026-07-27•Modified 2026-07-29•0 articles on news•4 live references•NVD data

CVE-2026-64646Vercel · Next.js

Vulnerability data via NVD (ingested)

CVSS v3.1

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS percentile

Exploit Prediction Scoring System · top 58% of all CVEs

Weaknesses (CWE)

CWE-770Allocation of Resources Without Limits or Throttling

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.

Timeline

Published 2026-07-27

Modified 2026-07-29

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.

Shodan · vuln tag

vuln:CVE-2026-64646

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Vercel Next.js"

All exposed Vercel Next.js instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Next.js"

HTTP body or banner mentions "Next.js" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-64646