Double free vulnerability in Esi.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via a crafted Edge Side Includes (ESI) response.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2016-4556.json"