CVE-2025-59464
HIGHNode.js 24.0.0-24.11.9 - Denial of Service via TLS Certificate Field Memory Leak
Title source: llmDescription
A memory leak in Node.js’s OpenSSL integration occurs when converting `X.509` certificate fields to UTF-8 without freeing the allocated buffer. When applications call `socket.getPeerCertificate(true)`, each certificate field leaks memory, allowing remote clients to trigger steady memory growth through repeated TLS connections. Over time this can lead to resource exhaustion and denial of service.
References (1)
Core 1
Core References
Release Notes, Vendor Advisory
https://nodejs.org/en/blog/vulnerability/december-2025-security-releases
Scores
CVSS v3
7.5
EPSS
0.0023
EPSS Percentile
13.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (1)
nodejs/node.js
24.0.0 - 24.12.0
Published
Jan 20, 2026
Tracked Since
Feb 18, 2026