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Advisory severityHigh7.5Red Hat Linux

High [CVE-2026-64644] Denial of Service via malicious image optimization

This high-severity Red Hat Linux advisory covers CVE-2026-64644 affecting Streams for Apache Kafka 3.2.1, streams for Apache Kafka 2.

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CVE-2026-64644 Source published Source updated

VulniPulse record published Record updated

CVE-2026-64644
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

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Summary

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. This vulnerability specifically affects configurations using config.images.remotePatterns.

This is an Important denial of service vulnerability in Next.js applications. This configuration is not enabled by default in Red Hat supported products, limiting exposure to environments where this specific feature has been activated.

Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-770.

Affected Red Hat products: Streams for Apache Kafka 3.2.1; streams for Apache Kafka 2. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer as not affected.

Affected versions
  • 15.5.0
  • 15.5.20
  • 16.0.0
  • 16.2.10

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Fixed versions
  • 15.5.21
  • 16.2.11
  • next
  • RHSA-2026:54435

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Mitigation

Upgrade to a fixed release: 15.5.21, 16.2.11, next, RHSA-2026:54435. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Discussion(0)

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