USN-8998-1: Squid vulnerability

Publication date

4 November 2026

Overview

Squid could allow unintended access to network services.

Releases


Packages

  • squid - Web proxy cache server

Details

It was discovered that Squid incorrectly handled certain HTTP Transfer-
Encoding headers. An attacker could possibly use this issue to perform
HTTP request smuggling attacks, bypass security mechanisms, or poison
web caches.

It was discovered that Squid incorrectly handled certain HTTP Transfer-
Encoding headers. An attacker could possibly use this issue to perform
HTTP request smuggling attacks, bypass security mechanisms, or poison
web caches.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
26.04 LTS resolute squid –  7.7-0ubuntu0.26.04.2

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