{
  "cvss": 7.5,
  "datePublished": "2026-09-18T15:17:20.600",
  "dateUpdated": "2026-11-04T15:17:56.620",
  "description": "A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/2 or HTTP/3 Extended CONNECT requests. Netty's HTTP-object conversion path incorrectly processes these requests as regular HTTP/1.1 CONNECT requests, leading to a loss of critical protocol and path information. This misinterpretation can allow attackers to bypass security policies, such as routing or authorization logic, in applications that rely on Netty for HTTP/2 or HTTP/3 communication, resulting in integrity loss.",
  "id": "CVE-2026-93568",
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    "cveTags": [],
    "descriptions": [
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        "value": "A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/2 or HTTP/3 Extended CONNECT requests. Netty's HTTP-object conversion path incorrectly processes these requests as regular HTTP/1.1 CONNECT requests, leading to a loss of critical protocol and path information. This misinterpretation can allow attackers to bypass security policies, such as routing or authorization logic, in applications that rely on Netty for HTTP/2 or HTTP/3 communication, resulting in integrity loss."
      }
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    "id": "CVE-2026-93568",
    "lastModified": "2026-11-04T15:17:56.620",
    "metrics": {
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          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
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          "impactScore": 3.6,
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            "options": [
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                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "partial"
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            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-18T15:19:46.334573Z",
            "version": "2.0.3"
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    "published": "2026-09-18T15:17:20.600",
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        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:69440"
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        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:69470"
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        "url": "https://access.redhat.com/errata/RHSA-2026:70257"
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        "type": "Secondary"
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  "severity": "HIGH",
  "source": "nvd",
  "title": "A flaw was found in Netty"
}