CVE-2026-4324: Rubygem-katello: katello: denial of service and potential information disclosure via sql injection

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-17 · updated 2026-06-17
Weakness: CWE-89

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.

Affected products

Red Hat Satellite 6.17 for RHEL 9: all versions — fixed in 0:0.0.3-4.el9sat, 0:0.1.23-0.3.el9pc, 0:0.13.0-1.el9sat, 0:0.4.3-1.el9sat, 0:1.2.0-0.1.el9pc, 0:1.5.1-1.el9sat
Red Hat Satellite 6.18 for RHEL 9: all versions — fixed in 0:4.18.0.9-1.el9sat
Red Hat Satellite 6.19 for RHEL 9: all versions — fixed in 0:4.20.0.4-1.el9sat

How to fix

Upgrade to a fixed version: Red Hat Satellite 6.17 for RHEL 9 0:0.0.3-4.el9sat, 0:0.1.23-0.3.el9pc, 0:0.13.0-1.el9sat, 0:0.4.3-1.el9sat; Red Hat Satellite 6.18 for RHEL 9 0:4.18.0.9-1.el9sat; Red Hat Satellite 6.19 for RHEL 9 0:4.20.0.4-1.el9sat. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2026-4324 or the next vulnerability affects your stack