CVE-2026-38969

Microsoft · Published July 9, 2026

7.5

CVSS v3.1

HIGH

Patch availableGet patch

Description

ruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling.. ruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling.

Affected Products

azl3 ruby 3.3.5-8 on Azure Linux 3.0
azl3 rubygem-webrick 1.8.1-3 on Azure Linux 3.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U