CVE-2026-34516

{
  "id": "CVE-2026-34516",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-01T21:16:59.723",
  "lastModified": "2026-10-26T00:10:00.150",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, a response with an excessive number of multipart headers may be allowed to use more memory than intended, potentially allowing a DoS vulnerability. This issue has been patched in version 3.13.4."
    },
    {
      "lang": "es",
      "value": "AIOHTTP es un framework cliente/servidor HTTP asíncrono para asyncio y Python. Antes de la versión 3.13.4, una respuesta con un número excesivo de encabezados multipart podría permitirse usar más memoria de la prevista, lo que podría permitir una vulnerabilidad DoS. Este problema ha sido parcheado en la versión 3.13.4."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "aio-libs",
          "product": "aiohttp",
          "versions": [
            {
              "version": "< 3.13.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
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          "baseScore": 6.6,
          "baseSeverity": "MEDIUM",
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          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
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          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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          "scope": "UNCHANGED",
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    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "timestamp": "2026-04-04T03:11:32.193097Z",
          "id": "CVE-2026-34516",
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              "exploitation": "none"
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  "references": [
    {
      "url": "https://github.com/aio-libs/aiohttp/commit/8a74257b3804c9aac0bf644af93070f68f6c5a6f",
      "source": "[email protected]",
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      "source": "[email protected]",
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}