CVE-2019-9900

Published April 25th, 2019

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CVSS v3

8.3

HIGH

CVSS v2

7.5

HIGH

Affected

PROJECT

Description

When parsing HTTP/1.x header values, Envoy 1.9.0 and before does not reject embedded zero characters (NUL, ASCII 0x0). This allows remote attackers crafting header values containing embedded NUL characters to potentially bypass header matching rules, gaining access to unauthorized resources.

envoyproxy/envoy

Cloud-native high-performance edge/middle/service proxy

GitHub

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