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CVE-2026-34043

CVE-2026-34043 · Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted "array-like" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.

CVSS 5.9 · Medium · EPSS 0.6% · Fix available

Published
Updated

Stack: system · node

Affected products and versions

  • serialize-javascript

    Versions
    • < 7.0.5: Affected

    No fix published

  • node-serialize-javascript Debian:12

    Versions
    • 6.0.0-2
    • 6.0.0-2+deb12u1
    • 6.0.1-1
    • 6.0.2-1
    • 7.0.4+~5.0.4-1
    • 7.0.5+~5.0.4-1
    • 7.0.7+~5.0.4-1
    • 7.1.2+~5.0.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-serialize-javascript Debian:13

    Versions
    • 6.0.2-1
    • 7.0.4+~5.0.4-1
    • 7.0.5+~5.0.4-1
    • 7.0.7+~5.0.4-1
    • 7.1.2+~5.0.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-serialize-javascript Debian:14

    Versions
    • 6.0.2-1
    • 7.0.4+~5.0.4-1
    Affected ranges
    • ECOSYSTEM: < 7.0.5+~5.0.4-1

    Update to 7.0.5+~5.0.4-1

  • serialize-javascript npm

    Affected ranges
    • SEMVER: ≥ 5.0.0, < 7.0.5

    Update to 7.0.5

  • node-serialize-javascript Ubuntu:22.04:LTS

    Versions
    • 5.0.1-2
    • 6.0.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-serialize-javascript Ubuntu:24.04:LTS

    Versions
    • 6.0.1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-serialize-javascript Ubuntu:25.10

    Versions
    • 6.0.1-1
    • 6.0.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-serialize-javascript Ubuntu:26.10

    Versions
    • 7.0.4+~5.0.4-1
    • 7.0.5+~5.0.4-1
    • 7.0.7+~5.0.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-serialize-javascript Ubuntu:26.04:LTS

    Versions
    • 6.0.2-1
    • 7.0.4+~5.0.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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