Vulnerability Details CVE-2026-22771
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 36.4%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-22771
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cpe:2.3:a:envoyproxy:gateway:*
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cpe:2.3:a:envoyproxy:gateway:0.2.0
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cpe:2.3:a:envoyproxy:gateway:0.3.0
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cpe:2.3:a:envoyproxy:gateway:0.4.0
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cpe:2.3:a:envoyproxy:gateway:0.5.0
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cpe:2.3:a:envoyproxy:gateway:0.6.0
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cpe:2.3:a:envoyproxy:gateway:1.0.0
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cpe:2.3:a:envoyproxy:gateway:1.0.2
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cpe:2.3:a:envoyproxy:gateway:1.1.0
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cpe:2.3:a:envoyproxy:gateway:1.1.1
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cpe:2.3:a:envoyproxy:gateway:1.1.2
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cpe:2.3:a:envoyproxy:gateway:1.1.3
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cpe:2.3:a:envoyproxy:gateway:1.1.4
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cpe:2.3:a:envoyproxy:gateway:1.2.0
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cpe:2.3:a:envoyproxy:gateway:1.2.1
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cpe:2.3:a:envoyproxy:gateway:1.2.2
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cpe:2.3:a:envoyproxy:gateway:1.2.3
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cpe:2.3:a:envoyproxy:gateway:1.2.4
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cpe:2.3:a:envoyproxy:gateway:1.2.5
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cpe:2.3:a:envoyproxy:gateway:1.2.6
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cpe:2.3:a:envoyproxy:gateway:1.2.7
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cpe:2.3:a:envoyproxy:gateway:1.2.8
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cpe:2.3:a:envoyproxy:gateway:1.3.0
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cpe:2.3:a:envoyproxy:gateway:1.3.1
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cpe:2.3:a:envoyproxy:gateway:1.3.2
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cpe:2.3:a:envoyproxy:gateway:1.3.3
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cpe:2.3:a:envoyproxy:gateway:1.4.0
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cpe:2.3:a:envoyproxy:gateway:1.4.1
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cpe:2.3:a:envoyproxy:gateway:1.4.2
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cpe:2.3:a:envoyproxy:gateway:1.4.3
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cpe:2.3:a:envoyproxy:gateway:1.5.0