CVE-2026-48042

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductEnvoy
PublishedJun 26, 2026
First seenJun 26, 2026
Weakness typeCWE-1124CWE-1124

How to fix

Update
  • envoyproxy envoy1.35.13, 1.36.9, 1.37.5, 1.38.3 or later

Affected products

ProductAffected versionsFixed in
envoyproxy envoy1.18.0 ≤ v < 1.35.13, 1.36.0 ≤ v < 1.36.9, 1.37.0 ≤ v < 1.37.5, 1.38.0 ≤ v < 1.38.31.35.13, 1.36.9, 1.37.5, 1.38.3

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