CVE-2026-34752

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/haraka/Haraka/releases/tag/v3.1.4	Release Notes
https://github.com/haraka/Haraka/security/advisories/GHSA-xph3-r2jf-4vp3	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:haraka_project:haraka:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-04-02 19:21

Updated : 2026-07-24 21:10

NVD link : CVE-2026-34752

Mitre link : CVE-2026-34752

CVE.ORG link : CVE-2026-34752

JSON object : View

Products Affected

haraka_project

haraka

CWE

CWE-248

Uncaught Exception

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