CVE-2020-15049
An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+ "-" or an uncommon shell whitespace character prefix to the length field-value.
Date published : 2020-06-30
https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5