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CVE-2026-84429

Estado: AplazadaMedia (6.9)—

An issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18. `django.utils.http.parse_header_parameters()` was subject to a potential denial-of-service attack due to quadratic time complexity when parsing a value with many separators inside a quoted parameter. An unauthenticated request could reach this parsing through headers such as `Accept` or `Content-Type`, for instance via the content negotiation performed by `HttpRequest.accepts()`. The per-call length limit does not bound the combined size of repeated headers. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Jisung Chae for reporting this issue.

CVSS

Probabilidad de explotación (EPSS)

FIRST aún no ha puntuado esta CVE (habitual en CVEs muy recientes o rechazadas).

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.

Aplicación web expuesta (Django) vulnerable a DoS por complejidad cuadrática en parseo de headers HTTP sin autenticación (AV:N/PR:N/UI:N). Atacante remoto genera denegación de servicio mediante headers malformados.

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

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication 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.

Django — DjangoAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-84429",
  "cveTags": [],
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          "options": [
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          "version": "2.0.3",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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              "versionType": "python"
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          "collectionURL": "https://pypi.org/project/Django/",
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  "published": "2026-10-06T14:17:46.910",
  "references": [
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      "url": "https://docs.djangoproject.com/en/dev/releases/security/",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
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      "url": "https://github.com/django/django/commit/3d8f121695c21234aff3071de0d38b6bd38c3f52",
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      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
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      "url": "https://www.djangoproject.com/weblog/2026/oct/06/security-releases/",
      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
    }
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  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-407"
        }
      ]
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  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18.\n`django.utils.http.parse_header_parameters()` was subject to a potential denial-of-service attack due to quadratic time complexity when parsing a value with many separators inside a quoted parameter. An unauthenticated request could reach this parsing through headers such as `Accept` or `Content-Type`, for instance via the content negotiation performed by `HttpRequest.accepts()`. The per-call length limit does not bound the combined size of repeated headers.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Jisung Chae for reporting this issue."
    }
  ],
  "lastModified": "2026-10-06T15:17:19.860",
  "sourceIdentifier": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
}