Common Weakness Enumeration

CWE-1124

Excessively Deep Nesting

The code contains a callable or other code grouping in which the nesting / branching is too deep.

CVE-2026-48042 (GCVE-0-2026-48042)

Vulnerability from cvelistv5 – Published: 2026-06-26 17:29 – Updated: 2026-06-26 17:29
VLAI
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
envoyproxy envoy Affected: >= 1.38.0, < 1.38.1
Affected: >= 1.37.0, < 1.37.3
Affected: >= 1.36.0, < 1.36.7
Affected: < 1.35.11
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      "affected": [
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          "product": "envoy",
          "vendor": "envoyproxy",
          "versions": [
            {
              "status": "affected",
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            },
            {
              "status": "affected",
              "version": "\u003e= 1.36.0, \u003c 1.36.7"
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        }
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      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
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      ],
      "problemTypes": [
        {
          "descriptions": [
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              "cweId": "CWE-1124",
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      "providerMetadata": {
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      },
      "references": [
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          "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-f24p-rxw2-g6pv",
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        "discovery": "UNKNOWN"
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    "dateReserved": "2026-05-20T18:15:53.578Z",
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.

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