CVE-2024-23326

creationtimestamp| type| source ---|---|--- 2025-07-25 01:12:22+00:00| seen| https://gist.github.com/ferasdour/504aa49686f8e64564249de44cd5eab2...

CVE-2024-23326

A possible request smuggling vulnerability exists through Envoy. This issue occurs if a server can be tricked into adding an upgrade header into a response...

CVE-2024-23326 Envoy incorrectly accepts HTTP 200 response for entering upgrade mode

Envoy is a cloud-native, open source edge and service proxy. A theoretical request smuggling vulnerability exists through Envoy if a server can be tricked into adding an upgrade header into a response. Per RFC https://www.rfc-editor.org/rfc/rfc7230section-6.7 a server sends 101 when switching...

CVE-2024-23326

CVE-2024-23326 is a vulnerability in Envoy (an open source cloud-native edge and service proxy) where a server can be tricked into adding an upgrade header in a response, causing request smuggling. The root cause is Envoy accepting a 200 response in a protocol upgrade flow (RFC 7230 §6.7 discusse...