# DSA-5171-1: squid security update

DSA-5171-1, released June 27, 2022, fixes 1 CVE in squid (version 4.13-10+deb11u1). None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dsa-5171-1
- Platform: Linux
- Released: Jun 27, 2022
- Priority: Routine (Closes CVE-2021-28116)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2021-28116

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [squid](https://patchblox.com/security/data/product/linux/squid.md) | Debian 11.6 (bullseye) | 4.13-10+deb11u1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-28116](https://patchblox.com/security/data/cve/CVE-2021-28116.md) | Routine | squid: Squid through 4.14 and 5.x through 5.0.5, in some configurations, allowsinformation disclosure because of an out-of-b... | 5.3 | 0.1295 |  |

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo