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CVE-2026-8924

Estado: ModificadaCrítica (9.1)—

A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set "super cookies" that bypass the Public Suffix List check. This enables an attacker-controlled origin to inject cookies that curl subsequently scopes and transmits to unrelated third-party domains.

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 AV:N/PR:N/UI:N indica explotación remota sin privilegios (T1190). La inyección de cookies permite robo de credenciales (T1212) y potencialmente phishing/recolección de datos (T1598) en dominios terceros.

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

Tecnologías afectadas (1)

CWE

Referencias

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  "published": "2026-07-03T07:16:24.793",
  "references": [
    {
      "url": "https://curl.se/docs/CVE-2026-8924.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9"
    },
    {
      "url": "https://curl.se/docs/CVE-2026-8924.json",
      "tags": [
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        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9"
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      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set\n\"super cookies\" that bypass the Public Suffix List check. This enables an\nattacker-controlled origin to inject cookies that curl subsequently scopes and\ntransmits to unrelated third-party domains."
    }
  ],
  "lastModified": "2026-09-15T07:16:32.573",
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    {
      "nodes": [
        {
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            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9"
}