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Security Advisories

CVE-2025-59464

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-59464

Severity

6.5

Medium

CVSS V3

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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.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2025-59464
  • https://github.com/advisories/GHSA-38m8-39f8-gq75
  • https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59464.json
  • https://nodejs.org/en/blog/vulnerability/december-2025-security-releases

Affected packages

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