CVE-2026-66792Multicloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() trusts user-settable annotations on managed clusters
Updated under an hour ago ()
Does this affect you?
It affects Red Hat Multicluster Global Hub 1.4.9 and 3 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 the multicloud-operators-subscription component. This vulnerability allows a user on a managed cluster to escalate their privileges by creating a Subscription with specific, crafted annotations. Successful exploitation grants the attacker the ability to deploy resources into any namespace with the elevated permissions of the controller's Service Account, potentially leading to unauthorized access and control over cluster resources.
- CVSS
- 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-863
- 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
- Sep 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Multicluster Global Hub 1.4.9 redhat:multicluster_globalhub | from 1788355439 not affected | CNA record |
from 1787262214 not affected | CNA record | |
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift | 4 | CNA record |
Red Hat Red Hat Openshift Data Foundation 4 redhat:openshift_data_foundation | 4 | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:60386vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:60387vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:60388vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:60389vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:60390vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:60391vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:67516vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:71597vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73419vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-66792vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2507537issue-tracking, x-refsource-redhat
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.