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Fencer Vulns
medium 6.5

CVE-2025-59464 json

A memory leak in Node.js’s OpenSSL integration occurs when converting `X.509` certificate fields to UTF-8 without freeing the allocated buf…

published 2026-01-20 9 mo ago modified 2026-09-08 2 mo ago also BIT-node-2025-59464 , BIT-node-min-2025-59464 , EUVD-2026-3340

cvss
6.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami node 24.12.0
  • bitnami node-min 24.12.0
  • nodejs node.js 24.12.0
  • nodejs24 hummingbird 1 24.14.1-4.1.hum1
  • nodejs24-bin hummingbird 1 24.14.1-4.1.hum1
  • nodejs24-npm hummingbird 1 11.11.0-1.24.14.1.4.1.hum1
  • nodejs24-libs hummingbird 1 24.14.1-4.1.hum1
  • nodejs24-npm-bin hummingbird 1 24.14.1-4.1.hum1
  • nodejs24-full-i18n hummingbird 1 24.14.1-4.1.hum1
  • nodejs20 hummingbird 1 20.20.0-7.1.hum1
  • nodejs20-bin hummingbird 1 20.20.0-7.1.hum1

red hat advisories RHSA-2026:7657RHSA-2026:7386RHSA-2026:7387RHSA-2026:7378RHSA-2026:6431RHSA-2026:6402

  • nodejs24 SLE Module for Web and Scripting 15 SP7 24.14.1-150700.15.8.1
  • nodejs24 SLES for SAP applications 16.0, SLES 16.0 24.14.1-160000.1.1

suse advisories SUSE-SU-2026:1299-1SUSE-SU-2026:21181-1

  • nodejs26 openSUSE Tumbleweed 26.3.1-1.1
  • nodejs24 openSUSE Leap 16.0 24.14.1-160000.1.1
  • nodejs24 openSUSE Tumbleweed 24.13.0-4.1

opensuse advisories openSUSE-SU-2026:11110-1openSUSE-SU-2026:20519-1openSUSE-SU-2026:10311-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-59464 updated cvss 6.5

nodejs: Nodejs memory leak

  • Red Hat Enterprise Linux 9 npm, nodejs, nodejs-libs, nodejs-full-i18n
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Hardened Images nodejs25 25.9.0-1.hum1, nodejs24 24.14.1-4.hum1, nodejs25 25.9.0-1.1.hum1, nodejs20 20.20.0-7.1.hum1, nodejs22 22.22.0-1.3.hum1, nodejs24 24.14.1-4.1.hum1, +30 more
    fixed: vendor fix RHSA-2026:7386
  • Red Hat Enterprise Linux 8 npm, nodejs, nodejs-libs, nodejs-nodemon, nodejs-full-i18n, nodejs-packaging, +1 more Red Hat Enterprise Linux 9 npm, nodejs, nodejs-libs, nodejs-full-i18n Red Hat Enterprise Linux 10 nodejs22, nodejs24 Red Hat Hardened Images v8-14.1-devel 14.1.146.11-1.25.9.0.1.hum1, v8-13.6-devel 13.6.233.17-1.24.14.1.4.hum1, v8-11.3-devel 11.3.244.8-1.20.20.0.7.1.hum1, v8-14.1-devel 14.1.146.11-1.25.9.0.1.1.hum1, v8-12.4-devel 12.4.254.21-1.22.22.0.1.3.hum1, v8-13.6-devel 13.6.233.17-1.24.14.1.4.1.hum1
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami node
>=24.0.0, <24.12.0
24.12.0
bitnami node-min
>=24.0.0, <24.12.0
24.12.0

Affected products

  • nodejs node

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.