Read the docs
Red Hat Security Advisory

RHSA-2016:1138

squid security update

Released 2016-05-31 · Red Hat rating Moderate · View on Red Hat →

Fixed in

Fixes 6 records

Priority MEDIUM 64

mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header smuggling" issue.

CVSS 3.0HIGH 8.6 Network No auth No interaction EPSS 0.38893 Published 2016-05-10 Partial fix CWE-345