#VU126390 Memory leak in Node.js - CVE-2025-59464

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Main Vulnerability Database Vulnerabilities #VU126390

#VU126390 Memory leak in Node.js - CVE-2025-59464

Published: April 17, 2026


Vulnerability identifier: #VU126390
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2025-59464
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Node.js
Software vendor:
Node.js Foundation

Description

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a memory leak in OpenSSL integration when converting X.509 certificate fields to UTF-8 during processing of TLS client certificates. A remote attacker can establish repeated TLS connections to cause a denial of service.

The issue is triggered when applications call socket.getPeerCertificate(true).


Remediation

Install security update from vendor's website.

External links