CVE-2025-59464
- State
- Published
- Severity
- 6.5 Medium
- Published
- Jan 20, 2026
- Updated
- Jan 21, 2026
- Reserved
- Sep 16, 2025
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 6.5 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | hackerone |
Weaknesses
- CWE-400 Uncontrolled Resource Consumption
Affected Products
| Product | Versions |
|---|---|
nodenodejs |
|
References
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