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CVE-2026-11564

Estado: ModificadaCrítica (9.1)—

libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup.

An easy handle that first uses default native CA trust can continue trusting the native platform store after the application switches that same handle to custom CA material for a later transfer.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vector CVSS con AV:N/PR:N/UI:N indica explotación remota sin privilegios (T1190). La reutilización de conexiones con validación de CA incorrecta permite interceptar tráfico HTTPS (T1557 - man-in-the-middle). CWE-295 (verificación de certificado incorrecta) sustenta el acceso a datos sensibles (T1041

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Network SegmentationNetwork Intrusion PreventionLimit Access to Resource Over NetworkFilter Network TrafficVulnerability ScanningUser Training

Tecnologías afectadas (1)

Haxx — Curl

CWE

Referencias

JSON original (NVD)

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    }
  ],
  "lastModified": "2026-09-15T07:16:25.530",
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