CVE-2026-48042

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 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-25)

CWE

CWE-1124

Published

2026-06-26

Modified

2026-10-25

Record from

the NVD, synced 2026-10-25

Affected

• envoyproxy:envoy

References

• https://github.com/envoyproxy/envoy/blob/099a9d71ebfd8aa9f823e1738b34138cb634a07b/source/common/json/json_loader.h#L21
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-f24p-rxw2-g6pv
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-f24p-rxw2-g6pv

Check your stackJSON