CVE-2026-56097 Rubygem-katello: sql injection in registry proxy via labels
An attacker with limited permissions can execute arbitrary SQL commands via unsanitized labels in the Katello Registry Proxy, potentially accessing or modifying database contents.
- 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-2026-56097?
CVE-2026-56097 is a medium-severity SQL injection vulnerability in Red Hat Satellite 6, published on 1 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in rubygem-katello. An SQL injection vulnerability exists in the Red Hat Satellite Katello Registry Proxy. The application fails to sanitize input parameters used in database queries within the RegistryProxiesController. The methods check_blob_push_org_label and get_matching_products_from_org take user-supplied labels directly from the request path and interpolate them into raw SQL fragments. This flaw is accessible to a user with only the create_personal_access_tokens permission, even if the user access is restricted, with no Organization or Location assigned.
Weakness: CWE-89
Which versions are affected by CVE-2026-56097?
How do I fix CVE-2026-56097?
Apply the vendor's patch.
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-2026-56097 being exploited?
There is no known exploitation of CVE-2026-56097 in the wild and no public exploit code.
Sources
Also known as GHSA-mmq3-mv36-wfm7.