CVE-2016-4554

HighCVSS 8.6/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.0 8.6/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Weakness enumeration

CWE-345

Affected software

No affected versions have been published.

Timeline

Published
May 10, 2016
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2016

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CVE-2016-4554: High severity, CVSS 8.6 | Vulnix