A HTTP response header injection vulnerability in Swoole v4.5.2 allows attackers to execute arbitrary code via supplying a crafted URL.
https://portswigger.net/kb/issues/00200200_http-response-header-injection
https://github.com/swoole/swoole-src/pull/3545
https://github.com/swoole/swoole-src/pull/3539
https://blog.cal1.cn/post/HTTP%20Response%20Header%20Injection%20in%20Swoole%3C%3D4.5.2