CVE-2025-59471

Summary

A denial of service vulnerability exists in self-hosted Next.js applications that have remotePatterns configured for the Image Optimizer. The image optimization endpoint (/_next/image) loads external images entirely into memory without enforcing a maximum size limit, allowing an attacker to cause out-of-memory conditions by requesting optimization of arbitrarily large images. This vulnerability requires that remotePatterns is configured to allow image optimization from external domains and that the attacker can serve or control a large image on an allowed domain.

Strongly consider upgrading to 15.5.10 or 16.1.5 to reduce risk and prevent availability issues in Next applications.

Affected Software

VendorProductVersion RangeStatus
vercelnext10.0 < 10.0affected
vercelnext11.0 < 11.0affected
vercelnext12.0 < 12.0affected
vercelnext13.0 < 13.0affected
vercelnext14.0 < 14.0affected
vercelnext15.0 < 15.5.10affected
vercelnext16.0 < 16.1.5affected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References