{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "1.34.0"
              },
              {
                "fixed": "1.35.13"
              },
              {
                "introduced": "1.36.0"
              },
              {
                "fixed": "1.36.9"
              },
              {
                "introduced": "1.37.0"
              },
              {
                "fixed": "1.37.5"
              },
              {
                "introduced": "1.38.0"
              },
              {
                "fixed": "1.38.3"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "d7809ba2b07fd869d49bfb122b27f6a7977b4d94"
            },
            {
              "fixed": "adb998f2875986005be294d10231a9c9a497e30d"
            },
            {
              "introduced": "63ee0dc79dce88117c6bd2df5a742f8eb67ea980"
            },
            {
              "fixed": "57198c441a298a75097c690726d90974549a9778"
            },
            {
              "introduced": "6d9bb7d9a85d616b220d1f8fe67b61f82bbdb8d3"
            },
            {
              "fixed": "f97695a50e11f5ff6719e129a466bf9204b64a7f"
            },
            {
              "introduced": "f1dd21b16c244bda00edfb5ffce577e12d0d2ec2"
            },
            {
              "fixed": "0ebfcfe5b0484b89ca85b761da9e05ce75dbda8d"
            }
          ],
          "repo": "https://github.com/envoyproxy/envoy",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-68cv-hq5f-g6xv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-416"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47207.json"
  },
  "details": "Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, Envoy crashes if an ext_proc server sends a single gRPC message containing multiple, specially crafted ProcessingResponse messages. This can occur when the first response in the batch causes the gRPC stream object to be destroyed, leading to a use-after-free error when Envoy attempts to process subsequent responses in the same gRPC message. This vulnerability is fixed in 1.35.13, 1.36.9, 1.37.5, and 1.38.3.",
  "id": "CVE-2026-47207",
  "modified": "2026-08-12T03:51:30.836537535Z",
  "published": "2026-06-26T17:52:27.739Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47207.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-68cv-hq5f-g6xv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47207"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Envoy crashes if multiple unexpected ext_proc responses are packed into one gRPC message"
}