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vulnerabilityCVE-2026-33526
Name
CVE-2026-33526
Source
NVD ( link)Debian ( link)
Description
Squid is a caching proxy for the Web. Prior to version 7.5, due to heap Use-After-Free, Squid is vulnerable to Denial of Service when handling ICP traffic. This problem allows a remote attacker to perform a reliable and repeatable Denial of Service attack against the Squid service using ICP protocol. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem _cannot_ be mitigated by denying ICP queries using `icp_access` rules. Version 7.5 contains a patch.
Published Date
Updated Date
Workaround
-

Analysis#


Affected Component
Analysis
squid
Exploitable

Vulnerability Ratings#


9.2
CVSSv4
7.5
CVSSv31
NaN
other

Others affected components#


Name
Project
Project Version
Version
Status
buildroot
master
7.6
Not Affected
openwrt
master
7.1-r1
Exploitable
openwrt
openwrt-25.12
7.1-r1
Exploitable
yocto
kirkstone
4.17
Exploitable
yocto
master
7.5
Not Affected
yocto
scarthgap
6.14
Exploitable