ALAS2023-2026-1399: mod_security_crs security update

ALAS2023-2026-1399, released February 5, 2026, fixes 1 CVE in mod_security_crs (version 4.2.0-1.amzn2023.0.2). None of them is reported as exploited. Patch Radar priority: Routine.

Routine

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

5.3

Base score, 0 to 10

Highest EPSS

0.1735

97th percentile

Fixed package versions

Product	Release	Fixed in
mod_security_crs	amzn 2023	4.2.0-1.amzn2023.0.2

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Routine	CVE-2026-21876	modsecurity-crs: modsecurity-crs - security update	5.3	0.1735	None reported

Also fixes CVE-2026-21876

DSA-6105-1
modsecurity-crs on Debian 12.15 (bookworm), Debian 13.5 (trixie)
DEBIAN-CVE-2026-21876
modsecurity-crs on Debian 14

Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2026-1399.html

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/fix/linux/alas2023-2026-1399">ALAS2023-2026-1399 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Which servers are still behind?

Patchblox compares the installed package on every Linux machine against the fixed version for its release, including machines reported through Azure Update Manager.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.