CVE 8.7 HIGH

Haraka affected by DoS via `__proto__` email header_CVE-2026-34752

8.7 / 10
HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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.

Basic Information

ID CVE-2026-34752
Source GitHub_M
Published Apr 2, 2026 at 18:42
Modified Apr 3, 2026 at 15:47

Affected Product

Vendor haraka
Product Haraka
Version < 3.1.4
Affected Versions haraka Haraka < 3.1.4

CWE Classification

References

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