CVE-2026-81668
Rubygem-katello: cross-tenant content view filter rule access and modification via unauthorized parent filter lookup
A flaw was found in Katello where the Content View Filter Rules API does not properly enforce authorization on the parent Content View Filter. An authenticated, low-privileged user with Content View permissions in one organization may be able to access and modify filter rules belonging to a Content View Filter in another organization by supplying that filter's identifier. This can result in unauthorized disclosure of filter-rule information and unauthorized changes to unpublished Content View filter configuration.
Fixes and workarounds
Workaround
Red Hat is not aware of a practical temporary workaround that fully mitigates this issue or meets Red Hat Product Security's standards for usability, deployment, applicability, or stability. Customers are advised to apply the relevant security updates when they become available.
Source: CNA: redhatAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Red Hat Satellite 6.16 for RHEL 8 Red Hat rubygem-katello
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.14.0.24-1.el8sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.16 for RHEL 9 Red Hat rubygem-katello
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.14.0.24-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.17 for RHEL 9 Red Hat rubygem-katello
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.16.0.23-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6.18 for RHEL 9 Red Hat rubygem-katello
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:4.18.0.29-1.el9sat; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Satellite 6 Red Hat katello
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 5.4 medium |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | CNA: redhat |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/errata/RHSA-2026:99949CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:99950CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:99952CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-81668CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2524928CNA: redhat · issue-tracking, x_refsource_REDHAT
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