CVE-2026-22771
January 12, 2026
Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.5.7 and 1.6.2, EnvoyExtensionPolicy Lua scripts executed by Envoy proxy can be used to leak the proxy's credentials. These credentials can then be used to communicate with the control plane and gain access to all secrets that are used by Envoy proxy, e.g. TLS private keys and credentials used for downstream and upstream communication. This vulnerability is fixed in 1.5.7 and 1.6.2.
Affected Packages
https://github.com/envoyproxy/gateway.git (GITHUB):
Affected version(s) >=v0.1.0 <v1.5.7Fix Suggestion:
Update to version v1.5.7https://github.com/envoyproxy/gateway.git (GITHUB):
Affected version(s) >=v1.6.0 <v1.6.2Fix Suggestion:
Update to version v1.6.2github.com/envoyproxy/gateway (GO):
Affected version(s) >=v1.6.0 <v1.6.2Fix Suggestion:
Update to version v1.6.2github.com/envoyproxy/gateway (GO):
Affected version(s) >=v0.1.0 <v1.5.7Fix Suggestion:
Update to version v1.5.7github.com/envoyproxy/gateway (GO):
Affected version(s) >=v1.6.0-rc.0 <v1.6.2Fix Suggestion:
Update to version v1.6.2Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Control of Generation of Code ('Code Injection')
EPSS
Base Score:
0.15
