CVE-2026-48042: CWE-1124: Excessively Deep Nesting in envoyproxy envoy
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.
AI Analysis
Technical Summary
CVE-2026-48042 is a vulnerability in the Envoy proxy where the destructor of JSON objects leads to a stack overflow if deeply nested JSON objects (on the order of 100,000 levels) are processed. This is due to excessively deep nesting causing excessive stack usage during object destruction. The vulnerability affects multiple release lines and is fixed in versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1.
Potential Impact
An attacker can cause a denial of service by triggering a stack overflow in the Envoy proxy through sending or processing deeply nested JSON objects. This results in application crash or service disruption. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
This vulnerability is fixed in Envoy versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1. Users should upgrade to these or later versions to remediate the issue. No other mitigation or temporary workaround is indicated.
CVE-2026-48042: CWE-1124: Excessively Deep Nesting in envoyproxy envoy
Description
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.
CVSS v3.1
Score 7.5high
Affected software
pkg:github/envoyproxy/envoyRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-48042 is a vulnerability in the Envoy proxy where the destructor of JSON objects leads to a stack overflow if deeply nested JSON objects (on the order of 100,000 levels) are processed. This is due to excessively deep nesting causing excessive stack usage during object destruction. The vulnerability affects multiple release lines and is fixed in versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1.
Potential Impact
An attacker can cause a denial of service by triggering a stack overflow in the Envoy proxy through sending or processing deeply nested JSON objects. This results in application crash or service disruption. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
This vulnerability is fixed in Envoy versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1. Users should upgrade to these or later versions to remediate the issue. No other mitigation or temporary workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-20T18:15:53.578Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3ec10ed9e07477746fae21
Added to database: 06/26/2026, 18:12:30 UTC
Last enriched: 07/03/2026, 22:30:53 UTC
Last updated: 08/10/2026, 00:41:16 UTC
Views: 87
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