Due to incorrect data validation Squid is vulnerable to HTTP Request Smuggling attacks against HTTP and HTTPS traffic. This leads to cache poisoning. Affected Versions: 2.5-3.5.28, 4.0-4.12, 5.0.1-5.0.3Due to incorrect data validation Squid is vulnerable to HTTP Request Splitting attacks against HTTP and HTTPS traffic. This leads to cache poisoning. Affected Versions: 2.7-3.5.28, 4.0-4.12, 5.0.1-5.0.3Due to Improper Input Validation Squid is vulnerable to a Denial of Service attack against the machine operating Squid. Affected Versions: 3.0-4.12, 5.0.1-5.0.3 Fixed Versions: 4.13, 5.0.4