CVE-2025-59464

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/20/2026

Last Modified1/30/2026

Sourcenvd

Honeypot Sightings0

Affected Products

nodejs:node.js

Weaknesses (CWE)

CWE-400

References

https://nodejs.org/en/blog/vulnerability/december-2025-security-releases(support@hackerone.com)

IOC Correlations

No correlations recorded

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