Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nodejs | Node.Js | >= 24.0.0, < 24.12.0 |
Related Weaknesses (CWE)
References
- https://nodejs.org/en/blog/vulnerability/december-2025-security-releasesRelease NotesVendor Advisory
FAQ
What is CVE-2025-59464?
CVE-2025-59464 is a vulnerability with a CVSS score of 7.5 (HIGH). 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)`...
How severe is CVE-2025-59464?
CVE-2025-59464 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-59464?
Check the references section above for vendor advisories and patch information. Affected products include: Nodejs Node.Js.