CVE-2026-64644

UNKNOWN 0.0

Next.js: Denial of Service in the Image Optimization API using SVGs

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-407
Vendor	vercel
Product	next.js
Published	Jul 27, 2026
Last Updated	Jul 27, 2026

Stay Ahead of the Next One

Get instant alerts for vercel next.js

Be the first to know when new unknown vulnerabilities affecting vercel next.js are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

Affected Versions

vercel / next.js

>= 15.5.0, < 15.5.21 >= 16.0.0, < 16.2.11

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/vercel/next.js/security/advisories/GHSA-q8wf-6r8g-63ch github.com: https://github.com/vercel/next.js/pull/96006 github.com: https://github.com/vercel/next.js/commit/93cb90891402fa4c47798d03cb9e05c13233766c github.com: https://github.com/vercel/next.js/releases/tag/v15.5.21 github.com: https://github.com/vercel/next.js/releases/tag/v16.2.11