USN-8766-1: Suricata-Update vulnerability

Publication date

15 September 2026

Overview

Suricata-Update could be made to write files outside the rules directory if it processed a specially crafted rule archive.


Packages

Details

Guillem Lefait discovered that Suricata-Update did not properly validate
destination paths when extracting files referenced by downloaded rule
archives. An attacker could possibly use this issue to write arbitrary
files outside the configured rules directory.

Guillem Lefait discovered that Suricata-Update did not properly validate
destination paths when extracting files referenced by downloaded rule
archives. An attacker could possibly use this issue to write arbitrary
files outside the configured rules directory.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
26.04 LTS resolute suricata-update –  1.3.7-2ubuntu0.1~esm1  
24.04 LTS noble suricata-update –  1.3.0-2ubuntu0.1~esm1  
22.04 LTS jammy suricata-update –  1.2.3-1ubuntu0.1~esm1  

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