CVE-2020-35470: Envoyproxy Envoy

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

Envoy before 1.16.1 logs an incorrect downstream address because it considers only the directly connected peer, not the information in the proxy protocol header. This affects situations with tcp-proxy as the network filter (not HTTP filters).

Affected products

• Envoyproxy Envoy: before 1.16.1 (fixed in 1.16.1)

Published 2020-12-15. Last modified 2026-06-17.