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# Debian DSA-6606-1 updates the squid package
- URL: https://stackurity.ai/blog/debian-dsa-6606-1-squid-security-update/
- Published: 2026-11-04T05:35:04.000Z
- Updated: 2026-11-04T05:35:04.000Z
- Description: Debian published DSA-6606-1, a security update for squid. See how to check one server by hand and how Stackurity confirms the package is updated.
- Author: Stackurity Research Team
- Tags: Linux Servers, News

**TL;DR:** Debian published DSA-6606-1, a security update for the squid proxy package. The announcement gives no details here, so read the Debian security tracker for the CVEs and fixed versions.

## What happened

The Debian Security Advisories feed published [DSA-6606-1](https://lists.debian.org/debian-security-announce/2026/msg00525.html) on November 3, 2026, a security update for squid. The Debian security tracker page for the advisory lists the CVEs and the fixed package version for each release. We quote no severity because the announcement gives none.

## Am I affected?

Any Debian server with the squid package installed is in scope until it takes the update. To check one machine by hand, run `dpkg -l squid` for the installed version, then `apt update` followed by `apt install --only-upgrade squid`. Debian backports fixes, so the version may look old after the update, which is why you compare against the tracker rather than the upstream release.

## How to check with Stackurity

Stackurity's read-only agent reads installed packages on Debian servers and matches them against advisories every hour, using Debian's own version rules so that backports are not reported as false alarms. It shows the upgrade to move to, and check again records whether the issue is really gone. See [how fixes are tracked](https://stackurity.ai/docs/remediation) in the docs. Stackurity Cloud has a 14-day free trial without a card: [start a free trial](https://app.stackurity.dev/signup?utm%5Fsource=blog&utm%5Fmedium=referral&utm%5Fcampaign=linux-servers&utm%5Fcontent=debian-dsa-6606-1-squid-security-update).