CVE-2026-56098Rubygem-katello: improper authorization logic allows resource enumeration
Updated under an hour ago ()
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It affects Red Hat Satellite 6.16 for RHEL 8 and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A flaw was found in rubygem-katello. The RegistryProxiesController in Katello contains an authorization bypass vulnerability due to an execution fall-through in the registry_authorize filter. While the application identifies unauthorized requests and triggers an error response via the unauthorized method, it fails to halt the execution of the current code path (missing return statement). This failure in the control flow allows the application to proceed into subsequent business logic and database validation filters. Consequently, the application reveals its internal state through differential responses, allowing an unprivileged attacker to enumerate valid Users, Organizations, and Products across the entire instance.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-203
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Satellite 6.16 for RHEL 8 redhat:satellite | from 0:4.14.0.23-1.el8sat not affected | CNA record |
Red Hat Red Hat Satellite 6.16 for RHEL 8 redhat:satellite_capsule | from 0:4.14.0.23-1.el8sat not affected | CNA record |
Red Hat Red Hat Satellite 6.16 for RHEL 8 redhat:satellite_utils | from 0:4.14.0.23-1.el8sat not affected | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:74503vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:74504vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:74505vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:74506vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-56098vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2490542issue-tracking, x-refsource-redhat
- http://www.openwall.com/lists/oss-security/2026/10/07/3
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.