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Envoy Proxy CVE-2019-18802 Vulnerability (CVE-2019-18802) - Vulnerability Database

Envoy Proxy CVE-2019-18802 Vulnerability (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.

References

CVE-2019-18802

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Severity

Critical

Classification

CVE-2019-18802
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Tags

Missing Update
Known Vulnerabilities