Envoy: Stack overflow in destructor of highly nested JSON

{
  "id": "013cca189432cbb18c021ca7fddbb2d8ef8806cc60804223a7600c1cc45f2c5c",
  "url": "https://osv.dev/vulnerability/CVE-2026-48042",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Envoy: Stack overflow in destructor of highly nested JSON",
    "summary": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, destructor of JSON Object results in stack overflow when deeply O(100K) nested objects are present. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.",
    "evidence": "osv:CVE-2026-48042",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-48042",
      "aliases": [
        "BIT-envoy-2026-48042",
        "CVE-2026-48042",
        "GHSA-f24p-rxw2-g6pv"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/envoyproxy/envoy",
              "type": "GIT",
              "events": [
                {
                  "introduced": "345ffe37148b7a35b6e8e04db0300463689e3ff1"
                },
                {
                  "fixed": "adb998f2875986005be294d10231a9c9a497e30d"
                },
                {
                  "introduced": "63ee0dc79dce88117c6bd2df5a742f8eb67ea980"
                },
                {
                  "fixed": "57198c441a298a75097c690726d90974549a9778"
                },
                {
                  "introduced": "6d9bb7d9a85d616b220d1f8fe67b61f82bbdb8d3"
                },
                {
                  "fixed": "f97695a50e11f5ff6719e129a466bf9204b64a7f"
                },
                {
                  "introduced": "f1dd21b16c244bda00edfb5ffce577e12d0d2ec2"
                },
                {
                  "fixed": "0ebfcfe5b0484b89ca85b761da9e05ce75dbda8d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.18.0"
                      },
                      {
                        "fixed": "1.35.13"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.36.0"
                      },
                      {
                        "fixed": "1.36.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.37.0"
                      },
                      {
                        "fixed": "1.37.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.38.0"
                      },
                      {
                        "fixed": "1.38.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.38.2",
            "v1.37.4",
            "v1.36.8",
            "v1.35.12",
            "v1.38.1",
            "v1.37.3",
            "v1.36.7",
            "v1.35.11",
            "v1.38.0",
            "v1.37.2",
            "v1.36.6",
            "v1.35.10",
            "v1.37.1",
            "v1.36.5",
            "v1.35.9",
            "v1.37.0",
            "v1.36.4",
            "v1.35.8",
            "v1.36.3",
            "v1.35.7",
            "v1.35.6",
            "v1.36.2",
            "v1.36.1",
            "v1.35.5",
            "v1.36.0",
            "v1.35.4",
            "v1.35.3",
            "v1.35.2",
            "v1.35.1",
            "v1.35.0",
            "v1.34.0",
            "v1.33.0",
            "v1.32.0",
            "v1.31.0",
            "v1.30.0",
            "v1.29.0",
            "v1.28.0",
            "v1.27.0",
            "v1.26.0",
            "v1.25.0",
            "v1.24.0",
            "v1.23.0",
            "v1.22.0",
            "v1.21.0",
            "v1.20.0",
            "v1.19.0",
            "v1.18.2",
            "v1.18.1",
            "v1.18.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48042.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.811899315Z",
      "provider": "osv",
      "references": [
        "https://github.com/envoyproxy/envoy/blob/099a9d71ebfd8aa9f823e1738b34138cb634a07b/source/common/json/json_loader.h#L21",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48042.json",
        "https://github.com/envoyproxy/envoy/security/advisories/GHSA-f24p-rxw2-g6pv",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-48042"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-1124"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48042.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-48042",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 501133,
  "published_at": "2026-06-26T17:29:14.964+00:00"
}