CVE-2016-4553

—

CVSS 3.0

8.6 high

EPSS

80%p100

Published

May 10, 2016 (May 10, 2016)

Modified

Jun 17, 2026

Description

client_side.cc in Squid before 3.5.18 and 4.x before 4.0.10 does not properly ignore the Host header when absolute-URI is provided, which allows remote attackers to conduct cache-poisoning attacks via an HTTP request.

Vendors: canonical squid-cache oracle
Products: ubuntu linux, squid, linux
Weakness: CWE-345
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (80.0%)

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