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CVE-2016-4553

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…

High8.6EPSS 80.0%
Published
Updated
Reserved
Assigned by
mitre

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.

Scores

CVSS scores of CVE-2016-4553, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0High8.6CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
EPSS (exploitation in 30 days)
80.0% · top 0.4% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.

Weakness

Affected products

  • n/a

    • affected n/a

References (13)

Sources

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Record last updated .