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CVE-2024-6827

Estado: AplazadaAlta (7.5)—

Gunicorn version 21.2.0 does not properly validate the value of the 'Transfer-Encoding' header as specified in the RFC standards, which leads to the default fallback method of 'Content-Length,' making it vulnerable to TE.CL request smuggling. This vulnerability can lead to cache poisoning, data exposure, session manipulation, SSRF, XSS, DoS, data integrity compromise, security bypass, information leakage, and business logic abuse.

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.

Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Gunicorn — GunicornAI

CWE

Referencias

JSON original (NVD)

Mostrar
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-6827",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
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            {
              "automatable": "yes"
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            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-03-20T17:52:37.458445Z"
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        "source": "security@huntr.dev",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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      "affectedData": [
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          "vendor": "benoitc",
          "product": "benoitc/gunicorn",
          "versions": [
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              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "latest"
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  "published": "2025-03-20T10:15:33.357",
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      "value": "Gunicorn version 21.2.0 does not properly validate the value of the 'Transfer-Encoding' header as specified in the RFC standards, which leads to the default fallback method of 'Content-Length,' making it vulnerable to TE.CL request smuggling. This vulnerability can lead to cache poisoning, data exposure, session manipulation, SSRF, XSS, DoS, data integrity compromise, security bypass, information leakage, and business logic abuse."
    },
    {
      "lang": "es",
      "value": "La versión 21.2.0 de Gunicorn no valida correctamente el valor del encabezado \"Transfer-Encoding\" según lo especificado en los estándares RFC, lo que lleva al método de respaldo predeterminado \"Content-Length\", lo que la hace vulnerable al contrabando de solicitudes TE.CL. Esta vulnerabilidad puede provocar envenenamiento de caché, exposición de datos, manipulación de sesiones, SSRF, XSS, denegación de servicio (DoS), vulneración de la integridad de los datos, elusión de seguridad, fuga de información y abuso de la lógica de negocio."
    }
  ],
  "lastModified": "2026-06-17T08:18:47.620",
  "sourceIdentifier": "security@huntr.dev"
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