| Package | Affected versions | Patched versions |
|---|---|---|
| envoy | ≤ 1.12.1 |
An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat "header-value " as a different string from "header-value" so for example with the Host header "example.com " one could bypass "example.com" matchers.
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