# DLA-4488-1: modsecurity-crs security update

DLA-4488-1, released February 22, 2026, fixes 1 CVE in modsecurity-crs (version 3.3.4-1~deb11u2). None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dla-4488-1
- Platform: Linux
- Released: Feb 22, 2026
- Priority: Urgent (Closes CVE-2023-38199, rated Critical)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2023-38199

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [modsecurity-crs](https://patchblox.com/security/data/product/linux/modsecurity-crs.md) | Debian 11.6 (bullseye) | 3.3.4-1~deb11u2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-38199](https://patchblox.com/security/data/cve/CVE-2023-38199.md) | Urgent | modsecurity-crs: coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers... | 9.8 | 0.0075 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo