https://www.ruby-lang.org/en/news/2019/10/01/http-response-splitting-in-webrick-cve-2019-16254/
CVE-2019-16254: HTTP response splitting in WEBrick (Additional fix) | Ruby
There is an HTTP response splitting vulnerability in WEBrick bundled with Ruby. This vulnerability has been assigned the CVE identifier CVE-2019-16254.
http response splittingcve201916254
https://www.openwall.com/lists/oss-security/2026/05/04/23
oss-security - CVE-2026-33523: Apache HTTP Server: multiple modules: HTTP response splitting...
apache http server