Quick answers
- Is CVE-2026-56098 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-56098 being exploited in the wild.
- How severe is CVE-2026-56098?
- Medium severity, with a CVSS score of 4.3, published 1 October 2026.
- Which products and versions are affected?
- Red Hat Katello prior to fix in Satellite 6.19.5.
- Is there a fix for CVE-2026-56098?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-56098 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-56098?
- Check whether you run Red Hat Katello at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The RegistryProxiesController contains an authorization bypass where the registry_authorize filter calls the unauthorized method but lacks a return statement, allowing execution to fall through into subsequent business logic. This missing control flow halting permits attackers to bypass authorization checks and trigger differential responses from database validation filters, enabling resource enumeration without authentication.
Affected products
- Red Hat Katello prior to fix in Satellite 6.19.5
Timeline
- 2026-10-01: disclosed