CVE-2023-27491 Information

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. Compliant HTTP/1 service should reject malformed request lines. Prior to versions 1.26.0 1.25.3 1.24.4 1.23.6 and 1.22.9 There is a possibility that non compliant HTTP/1 service may allow malformed requests potentially leading to a bypass of security policies. This issue is fixed in versions 1.26.0 1.25.3 1.24.4 1.23.6 and 1.22.9.

Reference

https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1 https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2 https://datatracker.ietf.org/doc/html/rfc9113#section-8.3