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cve/2019/CVE-2019-18802.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
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CVE-2019-18802

Description

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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