FKIE_CVE-2025-59464

Vulnerability from fkie_nvd - Published: 2026-01-20 21:16 - Updated: 2026-01-30 20:26
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
References
support@hackerone.comhttps://nodejs.org/en/blog/vulnerability/december-2025-security-releasesRelease Notes, Vendor Advisory
Impacted products
Vendor Product Version
nodejs node.js *
To clipboard 

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      "value": "A memory leak in Node.js\u2019s 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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      "value": "Una fuga de memoria en la integraci\u00f3n de OpenSSL de Node.js ocurre al convertir campos de certificado \u0027X.509\u0027 a UTF-8 sin liberar el b\u00fafer asignado. Cuando las aplicaciones llaman a \u0027socket.getPeerCertificate(true)\u0027, cada campo de certificado fuga memoria, permitiendo a clientes remotos desencadenar un crecimiento constante de la memoria a trav\u00e9s de conexiones TLS repetidas. Con el tiempo, esto puede llevar al agotamiento de recursos y a la denegaci\u00f3n de servicio."
    }
  ],
  "id": "CVE-2025-59464",
  "lastModified": "2026-01-30T20:26:26.333",
  "metrics": {
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          "attackVector": "NETWORK",
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          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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          "scope": "UNCHANGED",
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          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.0"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2026-01-20T21:16:03.900",
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      "source": "support@hackerone.com",
      "tags": [
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      "url": "https://nodejs.org/en/blog/vulnerability/december-2025-security-releases"
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