Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'
http://httpd.apache.org/security/vulnerabilities_24.html
https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html
https://security.gentoo.org/glsa/202107-38
https://security.netapp.com/advisory/ntap-20210702-0001/
https://www.debian.org/security/2021/dsa-4937