CVE-2025-59464
published 2026-01-20CVE-2025-59464: 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…
PriorityP339high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.24%
14.8th percentile
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.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | nodejs | — | — |
| nodejs | node | >= 24.12.0 < 24.12.0 | 24.12.0 |
| nodejs | node.js | >= 24.0.0 < 24.12.0 | 24.12.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian7.5LOW
vendor_redhat7.5HIGH
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Red Hat
nodejs: Nodejs memory leak
vendor_redhat·2026-01-20·CVSS 7.5
CVE-2025-59464 [HIGH] CWE-770 nodejs: Nodejs memory leak
nodejs: Nodejs memory leak
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.
A resource consumption flaw has been discovered in NodeJS. 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 T
Debian
CVE-2025-59464: nodejs - A memory leak in Node.js’s OpenSSL integration occurs when converting `X.509` ce...
vendor_debian·2025·CVSS 7.5
CVE-2025-59464 [HIGH] CVE-2025-59464: nodejs - A memory leak in Node.js’s OpenSSL integration occurs when converting `X.509` ce...
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.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved
sid: resolved
trixie: resolved
GHSA
GHSA-38m8-39f8-gq75: A memory leak in Node
ghsa_unreviewed·2026-01-20
CVE-2025-59464 [MEDIUM] CWE-400 GHSA-38m8-39f8-gq75: A memory leak in Node
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.
OSV
CVE-2025-59464: A memory leak in Node
osv·2026-01-20·CVSS 7.5
CVE-2025-59464 [HIGH] CVE-2025-59464: A memory leak in Node
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2025-59464 nodejs18: Nodejs memory leak [fedora-42]
bugzilla·2026-01-21·CVSS 7.5
CVE-2025-59464 [HIGH] CVE-2025-59464 nodejs18: Nodejs memory leak [fedora-42]
CVE-2025-59464 nodejs18: Nodejs memory leak [fedora-42]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Discussion:
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of '42'.
Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, change the 'version'
to a later Fedora Li
Bugzilla
CVE-2025-59464 nodejs: Nodejs memory leak
bugzilla·2026-01-20·CVSS 7.5
CVE-2025-59464 [HIGH] CVE-2025-59464 nodejs: Nodejs memory leak
CVE-2025-59464 nodejs: Nodejs memory leak
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.
Wiz
CVE-2025-59464 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.5
CVE-2025-59464 [HIGH] CVE-2025-59464 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2025-59464 :
Node.js vulnerability analysis and mitigation
X.509
socket.getPeerCertificate(true)
Source : NVD
## 7.5
Score
Published January 20, 2026
Severity HIGH
CNA Score 6.5
Affected Technologies
Node.js
Linux Fedora
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 16.4
Exploitation Probability (EPSS) 0.1
Affected packages and libraries
nodejs:24::npm
nodejs20-libs-debuginfo
Sources
Chainguard Has Fix Added at: Feb 02, 2026
Debian 11, 12, 13, 14 No Fix Added at: Jan 14, 2026
Echo No Fix Added at: Jan 14, 2026
MinimOS Severity HIGH Has Fix Added at: Jan 23, 2026
Red Hat 8, 9, 10 Severity MEDIUM No Fix Added at: Jan 21, 2026
Linux Severity HIGH Has Fix Added at: Ja
2026-01-20
Published