CVE-2025-59464
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-20

Last updated on: 2026-01-30

Assigner: HackerOne

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.
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Meta Information
Published
2026-01-20
Last Modified
2026-01-30
Generated
2026-06-16
AI Q&A
2026-01-20
EPSS Evaluated
2026-06-15
NVD
CVE-2025-59464
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
nodejs node.js From 24.0.0 (inc) to 24.12.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.
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Executive Summary

This vulnerability is a memory leak in Node.js's OpenSSL integration that happens when converting X.509 certificate fields to UTF-8. The allocated memory buffer is not freed properly. When applications call socket.getPeerCertificate(true), each certificate field leaks memory, allowing remote clients to cause continuous memory growth by making repeated TLS connections.

Impact Analysis

The vulnerability can lead to resource exhaustion and denial of service because the memory leak causes steady memory growth when exploited by remote clients through repeated TLS connections.

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