CVE-2025-59464
HIGH WAF: Medium
CVSS 7.5
Published: 2026-01-20
CWE-400
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.
WAF Coverage Analysis
Uncontrolled Resource Consumption
Medium WAF Coverage
OWASP: A05:2021 Security Misconfiguration
912xxx - DOS Protection
Affected Software
| Vendor | Product | Version |
|---|---|---|
| nodejs | node.js | 24.0.0 - 24.12.0 |
References
- nodejs.org (Release Notes, Vendor Advisory)