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CVE-2026-22771

Envoy Extension Policy lua scripts injection causes arbitrary command execution

Published: Jan 12, 2026Updated: Jun 30, 2026 Sources: CVE List NVD GHSA BDUCWE-94
8.8HIGH
NVD MITRE
EPSS Score
0.6%
Top 57.3%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94

Affected Products

Сообщество свободного программного обеспечения
oss-projectaka fsf
Envoy GatewayOn-premNetwork Device
Networking Infrastructure / load-balancer-proxy
envoyproxy
oss-project·USaka envoy, envoy proxy
gatewaySaaSSaaS Service
Cloud & SaaS / api-gateway
Go
package-ecosystem
github.com/envoyproxy/gateway
OSS Libraries

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/envoyproxy/gateway/security/advisories/GHSA-xrwg-mqj6-6m22
github.com
https://access.redhat.com/security/cve/CVE-2026-22771
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2428735
bugzilla.redhat.com
and 3 more references View all →
News mentions
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