CVE-2026-22771GHSA-XRWG-MQJ6-6M22BIT-ENVOY-GATEWAY-2026-22771GO-2026-4312
Envoy Extension Policy lua scripts injection causes arbitrary command execution
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.5.7, 1.6.2
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: total
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: total
- Record last updated
Affected versions
- envoyproxy gateway
fixed in 1.5.7; From 1.6.0-rc.0 · fixed in 1.6.2
- github.com/envoyproxy/gatewayGo
From 1.6.0-rc.0 · fixed in 1.6.2
- github.com/envoyproxy/gatewayGo
fixed in 1.5.7
- github.com/envoyproxy/gatewayGo
fixed in 1.5.7; From 1.6.0-rc.0 · fixed in 1.6.2