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CVE-2026-64644

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

Published: Jul 27, 2026Updated: Jul 29, 2026 Sources: CVE List NVDCWE-407
5.3MEDIUM
NVD MITRE
EPSS Score
0.7%
Top 51.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-407

Affected Products

vercel
commercial·US
next.jsLibraryLibrary
OSS Libraries / web-framework

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
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References

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
and 2 more references View all →

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