Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.
https://github.com/squid-cache/squid/security/advisories/GHSA-2g3c-pg7q-g59w
https://bugzilla.redhat.com/show_bug.cgi?id=2245919
https://access.redhat.com/security/cve/CVE-2023-46848
https://access.redhat.com/errata/RHSA-2023:6748