Envoy incorrectly restores the proxy protocol downstream address for non-HTTP connections.

Nov 21, 2020

Disclosure Details
CVSS Impact ScoreN/A
Affected Releases1.8.0

Envoy, and subsequently Istio, is vulnerable to a newly discovered vulnerability:

This issue does not affect HTTP connections. The address from X-Forwarded-For is also not affected.

Istio does not support proxy protocol, and the only way to enable it is to use a custom EnvoyFilter resource. It is not tested in Istio and should be used at your own risk.


Reporting vulnerabilities

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