CVE-2026-4324 Rubygem-katello: katello: denial of service and potential information disclosure via sql injection
Remote attackers can inject SQL via the bootc_images API to cause denial of service or extract sensitive database information in Red Hat Satellite.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-4324?
CVE-2026-4324 is a medium-severity SQL injection vulnerability in Red Hat Satellite 6, published on 17 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in the Katello plugin for Red Hat Satellite. This vulnerability, caused by improper sanitization of user-provided input, allows a remote attacker to inject arbitrary SQL commands into the sort_by parameter of the /api/hosts/bootc_images API endpoint. This can lead to a Denial of Service (DoS) by triggering database errors, and potentially enable Boolean-based Blind SQL injection, which could allow an attacker to extract sensitive information from the database.
Weakness: CWE-89
Which versions are affected by CVE-2026-4324?
2 open source packages ship an affected version, including katello.
| Package | Affected | Fixed in |
|---|---|---|
katello RubyGems | All versions | 4.19.1 |
katello RubyGems | All versions | 4.19.1 |
How do I fix CVE-2026-4324?
Upgrade katello to 4.19.1 or later.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-4324 being exploited?
There is no known exploitation of CVE-2026-4324 in the wild and no public exploit code.
Sources
Also known as GHSA-fwj4-6wgp-mpxm.