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CVE-2026-34752

CVE-2026-34752 · Haraka affected by DoS via `__proto__` email header

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

Haraka is a Node.js mail server. Prior to version 3.1.4, sending an email with __proto__: as a header name crashes the Haraka worker process. This issue has been patched in version 3.1.4.

CVSS 8.7 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • haraka

    Versions
    • < 3.1.4: Affected

    No fix published

  • haraka npm

    Affected ranges
    • SEMVER: < 3.1.4

    Update to 3.1.4

Original sources

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