Changelog for varnish-6.6.2-4.el9_3.1.i686.rpm :

* Sat Mar 30 2024 Luboš Uhliarik - 6.6.2-4.1- Resolves: RHEL-30387 - varnish: HTTP/2 Broken Window Attack may result in denial of service (CVE-2024-30156)
* Thu Oct 19 2023 Tomas Korbar - 6.6.2-4- Add parameters h2_rst_allowance and h2_rst_allowance_period to mitigate CVE-2023-44487- Resolves: RHEL-12817
* Mon Dec 05 2022 Luboš Uhliarik - 6.6.2-3- Resolves: #2142096 - CVE-2022-45060 varnish: Request Forgery Vulnerability