Vulnerability in Envoyproxy Envoy
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 v…
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Envoyproxy Envoy — versions >= 1.38.0, < 1.38.1, >= 1.37.0, < 1.37.3, >= 1.36.0, < 1.36.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-48042?
- CVE-2026-48042 is a high-severity vulnerability in Envoyproxy Envoy, classified under CWE-1124. CVSS score: 7.5/10. Published 2026-06-26.
- How severe is CVE-2026-48042?
- High severity. CVSS v3 base score is 7.5 out of 10.