Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-64644— Next.js: Denial of Service in the Image Optimization API using SVGs

CVSS 6.3 · Medium EPSS 0.68% · P49

Possible ATT&CK Techniques 1AI

T1496 · Resource Hijacking

Affected Version Matrix 2

VendorProductVersion RangeStatus
vercelnext.js>= 15.5.0, < 15.5.21affected
>= 16.0.0, < 16.2.11affected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-64644

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Next.js: Denial of Service in the Image Optimization API using SVGs
Source: CVE Program / CVE List V5
Vulnerability Description
Next.js is a React framework for building full-stack web applications. In versions 15.5.0 through 15.5.20 and 16.0.0 through 16.2.10, when self-hosting Next.js with the default image loader, the Image Optimization API can optimize remotely hosted images if configured (not enabled by default). If those images contain malicious content, they can cause CPU exhaustion in /_next/image endpoints.Only config.images.remotePatterns is affected, and just the patterns in that array, whereas config.images.unoptimized: true, config.images.loader: 'custom', and Vercel are not impacted. This issue has been fixed in versions 15.5.21 and 16.2.11.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
算法复杂性
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
vercelnext.js >= 15.5.0, < 15.5.21 -

II. Public POCs for CVE-2026-64644

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-64644

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-64644 (2)

Vendor Advisories for CVE-2026-64644 (1)

Vendor Pages for CVE-2026-64644 (1)

Same Patch Batch · vercel · 2026-07-27 · 9 CVEs total

CVE-2026-646428.3 HIGHNext.js: Middleware / Proxy bypass in App Router applications using Turbopack and single l
CVE-2026-646458.3 HIGHNext.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostn
CVE-2026-646498.3 HIGHNext.js: Server-Side Request Forgery in Server Actions on Custom Servers
CVE-2026-646418.2 HIGHNext.js: Denial of Service in App Router using Server Actions
CVE-2026-646436.3 MEDIUMNext.js: Unauthenticated Disclosure of Internal Server Function endpoints
CVE-2026-646466.3 MEDIUMNext.js: Unbounded Server Action payload in Edge runtime
CVE-2026-646476.3 MEDIUMNext.js: Response Body Cache Confusion with Invalid UTF-8 Request Bodies
CVE-2026-646486.0 MEDIUMNext.js: Response Body Cache Confusion for Requests Containing Bodies

IV. Related Vulnerabilities

Same product: next.js
Same vendor: vercel
Same weakness: CWE-407

V. Comments for CVE-2026-64644

No comments yet

Leave a comment