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Description

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.

PUBLISHED Reserved 2026-03-30 | Published 2026-04-02 | Updated 2026-04-03 | Assigner GitHub_M




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-248: Uncaught Exception

Product status

< 3.1.4
affected

References

github.com/...Haraka/security/advisories/GHSA-xph3-r2jf-4vp3

github.com/haraka/Haraka/releases/tag/v3.1.4

cve.org (CVE-2026-34752)

nvd.nist.gov (CVE-2026-34752)

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