CVE-2026-47778: envoy before 1.35.13 (exclusive), from 1.36.0 (inclusive), before 1.36.9 (exclusive), from 1.37.0 (inclusive), before…

Affected technology

envoy · before 1.35.13 (exclusive)
envoyproxy

envoy · from 1.36.0 (inclusive), before 1.36.9 (exclusive)
envoyproxy

envoy · from 1.37.0 (inclusive), before 1.37.5 (exclusive)
envoyproxy

envoy · from 1.38.0 (inclusive), before 1.38.3 (exclusive)
envoyproxy

envoy · >= 1.38.0, < 1.38.1, >= 1.37.0, < 1.37.3, >= 1.36.0, < 1.36.7, < 1.35.11
envoyproxy

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · High privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 4.4/10) rates confidentiality impact as high; integrity and availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.