# DSA-5388-1: haproxy security update

DSA-5388-1, released April 13, 2023, fixes 1 CVE in haproxy (version 2.2.9-2+deb11u5). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dsa-5388-1
- Platform: Linux
- Released: Apr 13, 2023
- Priority: High (Closes CVE-2023-0836, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2023-0836

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [haproxy](https://patchblox.com/security/data/product/linux/haproxy.md) | Debian 11.6 (bullseye) | 2.2.9-2+deb11u5 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-0836](https://patchblox.com/security/data/cve/CVE-2023-0836.md) | High | haproxy: The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications.... | 7.5 | 0.0120 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo