Description
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.
Published: 2026-10-01
Score: 4.3 Medium
EPSS: n/a
KEV: No
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Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

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History

Thu, 01 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Rubygem-katello: improper authorization logic allows resource enumeration
First Time appeared Redhat
Redhat satellite
Redhat satellite Capsule
Redhat satellite Utils
Weaknesses CWE-203
CPEs cpe:/a:redhat:satellite:6
cpe:/a:redhat:satellite:6.19::el9
cpe:/a:redhat:satellite_capsule:6.19::el9
cpe:/a:redhat:satellite_utils:6.19::el9
Vendors & Products Redhat
Redhat satellite
Redhat satellite Capsule
Redhat satellite Utils
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}


Subscriptions

Redhat Satellite Satellite Capsule Satellite Utils
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-01T18:02:58.311Z

Reserved: 2026-06-18T19:08:09.850Z

Link: CVE-2026-56098

cve-icon Vulnrichment

Updated: 2026-10-01T18:02:54.860Z

cve-icon NVD

Status : Received

Published: 2026-10-01T18:17:19.763

Modified: 2026-10-01T19:17:23.160

Link: CVE-2026-56098

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T19:30:11Z

Weaknesses