{
  "cveId": "CVE-2024-23326",
  "url": "https://patchblox.com/security/cve/CVE-2024-23326",
  "summary": "CVE-2024-23326 is fixed in ecs-service-connect-agent on 1 platform by ALAS2023-2024-647 (version v1.29.5.0-1.amzn2023), released June 19, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "ecs-service-connect-agent: Envoy is a cloud-native, open source edge and service proxy",
  "description": "Envoy is a cloud-native, open source edge and service proxy. A theoretical request smuggling vulnerability exists through Envoy if a server can be tricked into adding an upgrade header into a response. Per RFC https://www.rfc-editor.org/rfc/rfc7230#section-6.7 a server sends 101 when switching protocols. Envoy incorrectly accepts a 200 response from a server when requesting a protocol upgrade, but 200 does not indicate protocol switch. This opens up the possibility of request smuggling through Envoy if the server can be tricked into adding the upgrade header to the response.",
  "published": "2024-06-19T21:09:00Z",
  "severity": "important",
  "epss": 0.00361,
  "epssPercentile": 0.30345,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "ecs-service-connect-agent",
      "release": "amzn 2023",
      "fixedVersion": "v1.29.5.0-1.amzn2023",
      "fix": "ALAS2023-2024-647",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-647",
      "released": "2024-06-19T21:09:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-11T13:47:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}