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CVE-2025-64763 Envoy forwards early CONNECT data in TCP proxy mode

🗓️ 03 Dec 2025 18:13:58Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 10 Views

Envoy in connect proxy mode may forward early data before a successful response, risking tunnel desynchronization; a runtime flag can reject this data.

Related
Affected
Refs
[
  {
    "vendor": "envoyproxy",
    "product": "envoy",
    "versions": [
      {
        "version": ">= 1.36.0, <= 1.36.2",
        "status": "affected"
      },
      {
        "version": ">= 1.35.0, <= 1.35.6",
        "status": "affected"
      },
      {
        "version": ">= 1.34.0, <= 1.34.10",
        "status": "affected"
      },
      {
        "version": "<= 1.33.12",
        "status": "affected"
      }
    ]
  }
]

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