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.
Remediation
References
Related Vulnerabilities
WordPress Plugin The Events Calendar Unspecified Vulnerability (4.0.4)
Oracle Database Server CVE-2020-2511 Vulnerability (CVE-2020-2511)
IBM WebSEAL Improper Restriction of Rendered UI Layers or Frames Vulnerability (CVE-2018-1803)
MySQL CVE-2022-21479 Vulnerability (CVE-2022-21479)
Joomla Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2010-1432)