Red Hat Security Advisory RHSA-2004:134-01 - A bug was found in the processing of %-encoded characters in a URL in versions of Squid 2.5.STABLE4 and earlier. If a Squid configuration uses Access Control Lists (ACLs), a remote attacker could create URLs that would not be correctly tested against Squid's ACLs, potentially allowing clients to access prohibited URLs.
39303053afa5c4c6ad8257b0ae22265b1b4be246171e3264649c906efbc46a35