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    CVE-2026-64644

    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.

    Published:Jul 27, 2026
    Last Modified:Jul 28, 2026
    EPS:Jul 27, 2026
    EPSS Score:0.00531
    CVSS Score:7.5

    Affected Products

    Vendor
    Vercel
    Product
    Next.js

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-64648 (CVSS 6) — Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and …
    CVE-2026-64647 (CVSS 6.3) — Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and …
    CVE-2026-64646 (CVSS 6.3) — Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and …
    CVE-2026-64643 (CVSS 6.3) — Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and …
    CVE-2026-64642 (CVSS 8.3) — Next.js is a React framework for building full-stack web applications. In versions 16.0.0 through 16.2.10, cra…
    CVE-2026-64641 (CVSS 8.2) — Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and …
    CVE-2026-64645 (CVSS 8.3) — Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and …
    CVE-2026-45109 (CVSS 7.5) — Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.18 and 16.2.…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High