ruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling.
https://github.com/ruby/webrick/pull/199
https://github.com/ruby/webrick/issues/198
Source: Mitre, NVD
Published: 2026-07-02
Updated: 2026-07-02
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
Severity: Medium
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical