VULNERABILITY INTELLIGENCE
CVE-2016-4553
CVSS score8.6 HIGH
EPSS probability79.97%
CISA KEVNot currently listed
Published2016-05-10
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
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.
Weakness classification
- CWE-345: Insufficient Verification of Data Authenticity
Primary references
- cve@mitre.org — Vendor Advisory
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Vendor Advisory
- cve@mitre.org
- cve@mitre.org — Third Party Advisory
- cve@mitre.org
- cve@mitre.org