CVE-2024-34364: Envoyproxy Envoy

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Envoy is a cloud-native, open source edge and service proxy. Envoy exposed an out-of-memory (OOM) vector from the mirror response, since async HTTP client will buffer the response with an unbounded buffer.

Affected products

• Envoyproxy Envoy: before 1.27.6 (fixed in 1.27.6); from 1.28.0, before 1.28.4 (fixed in 1.28.4); from 1.29.0, before 1.29.5 (fixed in 1.29.5); from 1.30.0, before 1.30.2 (fixed in 1.30.2)

Published 2024-06-04. Last modified 2026-06-17.