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CVE-2026-33034

Estado: AnalizadaAlta (7.5)—

An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. ASGI requests with a missing or understated `Content-Length` header could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit when reading `HttpRequest.body`, allowing remote attackers to load an unbounded request body into memory. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Superior for reporting this issue.

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.

Vulnerabilidad remota sin autenticación (AV:N, PR:N, UI:N) que permite consumo excesivo de memoria mediante solicitudes ASGI con encabezado Content-Length manipulado, causando denegación de servicio por agotamiento de recursos.

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)

Djangoproject — Django

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-33034",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-33034",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-07T20:43:43.119514Z"
        }
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
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  },
  "affected": [
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      "affectedData": [
        {
          "repo": "https://github.com/django/django/",
          "vendor": "djangoproject",
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  "published": "2026-04-07T15:17:39.393",
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      "url": "https://www.djangoproject.com/weblog/2026/apr/07/security-releases/",
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        "Vendor Advisory"
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      "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30.\nASGI requests with a missing or understated `Content-Length` header could\r\nbypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit when reading\r\n`HttpRequest.body`, allowing remote attackers to load an unbounded request body into\r\nmemory.\nEarlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.\nDjango would like to thank Superior for reporting this issue."
    }
  ],
  "lastModified": "2026-06-17T10:36:50.430",
  "configurations": [
    {
      "nodes": [
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              "matchCriteriaId": "344A677E-BD67-42F0-9746-5B0D4C53815E",
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}