Incorrect authorization in Red Hat Multicluster Global Hub 1.4.9
Priority MEDIUM 44CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 9 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-863.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00689 53rd percentileScored 2026-11-07
Fix Partial Red Hat: 9 advisoriesRed Hat: 9 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 | — | 1788355439 | Patch available | CNA |
| Red Hat | Multicluster Global Hub 1.4.9 | — | 1788355599 | Patch available | CNA |
| Red Hat | Multicluster Global Hub 1.4.9 | — | 1788355417 | Patch available | CNA |
| Red Hat | Multicluster Global Hub 1.5.8 | — | 1789515408 | Patch available | CNA |
| Red Hat | Multicluster Global Hub 1.5.8 | — | 1789515288 | Patch available | CNA |
| Red Hat | Multicluster Global Hub 1.5.8 | — | 1789478830 | Patch available | CNA |
| Red Hat | Multicluster Global Hub 1.6.6 | — | 1790085494 | Patch available | CNA |
| Red Hat | Multicluster Global Hub 1.6.6 | — | 1790086176 | Patch available | CNA |
| Red Hat | Multicluster Global Hub 1.6.6 | — | 1790085268 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 | — | 1787262214 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 | — | 1787263584 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 | — | 1787259284 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 | — | 1787263693 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 | — | 1786976940 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 | — | 1787170830 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 | — | 1787238598 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 | — | 1787240030 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 | — | 1787242135 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 | — | 1787242321 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 | — | 1787242131 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 | — | 1787242108 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — | — | Not affected | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — | — | Not affected | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — | — | Not affected | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — | — | Not affected | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Openshift Data Foundation 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat Openshift Data Foundation 4 | — | — | Not affected | CNA |
| Red Hat | Red Hat Openshift Data Foundation 4 | — | — | Not affected | CNA |
- Multicluster Global Hub 1.4.9 VendorRed Hat Affected — Fixed in 1788355439 Patch available CNA
- Multicluster Global Hub 1.4.9 VendorRed Hat Affected — Fixed in 1788355599 Patch available CNA
- Multicluster Global Hub 1.4.9 VendorRed Hat Affected — Fixed in 1788355417 Patch available CNA
- Multicluster Global Hub 1.5.8 VendorRed Hat Affected — Fixed in 1789515408 Patch available CNA
- Multicluster Global Hub 1.5.8 VendorRed Hat Affected — Fixed in 1789515288 Patch available CNA
- Multicluster Global Hub 1.5.8 VendorRed Hat Affected — Fixed in 1789478830 Patch available CNA
- Multicluster Global Hub 1.6.6 VendorRed Hat Affected — Fixed in 1790085494 Patch available CNA
- Multicluster Global Hub 1.6.6 VendorRed Hat Affected — Fixed in 1790086176 Patch available CNA
- Multicluster Global Hub 1.6.6 VendorRed Hat Affected — Fixed in 1790085268 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.11 VendorRed Hat Affected — Fixed in 1787262214 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.11 VendorRed Hat Affected — Fixed in 1787263584 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.13 VendorRed Hat Affected — Fixed in 1787259284 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.13 VendorRed Hat Affected — Fixed in 1787263693 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.14 VendorRed Hat Affected — Fixed in 1786976940 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.14 VendorRed Hat Affected — Fixed in 1787170830 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.15 VendorRed Hat Affected — Fixed in 1787238598 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.15 VendorRed Hat Affected — Fixed in 1787240030 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.16 VendorRed Hat Affected — Fixed in 1787242135 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.16 VendorRed Hat Affected — Fixed in 1787242321 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.17 VendorRed Hat Affected — Fixed in 1787242131 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.17 VendorRed Hat Affected — Fixed in 1787242108 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Advanced Cluster Management for Kubernetes 2 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Advanced Cluster Management for Kubernetes 2 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Advanced Cluster Management for Kubernetes 2 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Advanced Cluster Management for Kubernetes 2 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Openshift Data Foundation 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Openshift Data Foundation 4 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Openshift Data Foundation 4 VendorRed Hat Affected — Fixed in — Not affected CNA
CPE names CNA · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/a:redhat:multicluster_globalhub:1.4::el9 | 1.4 | — | Red Hat |
| cpe:/a:redhat:multicluster_globalhub:1.5::el9 | 1.5 | — | Red Hat |
| cpe:/a:redhat:multicluster_globalhub:1.6::el9 | 1.6 | — | Red Hat |
| cpe:/a:redhat:acm:2.11::el9 | 2.11 | — | Red Hat |
| cpe:/a:redhat:acm:2.13::el9 | 2.13 | — | Red Hat |
| cpe:/a:redhat:acm:2.14::el9 | 2.14 | — | Red Hat |
| cpe:/a:redhat:acm:2.15::el9 | 2.15 | — | Red Hat |
| cpe:/a:redhat:acm:2.16::el9 | 2.16 | — | Red Hat |
| cpe:/a:redhat:acm:2.17::el9 | 2.17 | — | Red Hat |
| cpe:/a:redhat:acm:2 | 2 | — | Red Hat |
- cpe:/a:redhat:multicluster_globalhub:1.4::el9 Versions 1.4 — ·Red Hat
- cpe:/a:redhat:multicluster_globalhub:1.5::el9 Versions 1.5 — ·Red Hat
- cpe:/a:redhat:multicluster_globalhub:1.6::el9 Versions 1.6 — ·Red Hat
- cpe:/a:redhat:acm:2.11::el9 Versions 2.11 — ·Red Hat
- cpe:/a:redhat:acm:2.13::el9 Versions 2.13 — ·Red Hat
- cpe:/a:redhat:acm:2.14::el9 Versions 2.14 — ·Red Hat
- cpe:/a:redhat:acm:2.15::el9 Versions 2.15 — ·Red Hat
- cpe:/a:redhat:acm:2.16::el9 Versions 2.16 — ·Red Hat
- cpe:/a:redhat:acm:2.17::el9 Versions 2.17 — ·Red Hat
- cpe:/a:redhat:acm:2 Versions 2 — ·Red Hat
Remediation
Red Hat 9 advisories
- RHSA-2026:73419 Released 2026-09-29 · Red Hat rating ImportantMulticluster Global Hub 1.6.6 security update
- Multicluster Global Hub 1.6.6 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +2
- RHSA-2026:71597 Released 2026-09-24 · Red Hat rating ImportantMulticluster Global Hub 1.5.8 security update
- Multicluster Global Hub 1.5.8 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +2
- RHSA-2026:67516 Released 2026-09-15 · Red Hat rating ImportantMulticluster Global Hub 1.4.9 security update
- Multicluster Global Hub 1.4.9 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +2
Show 6 more Red Hat advisories
- RHSA-2026:60391 Released 2026-08-26 · Red Hat rating ImportantRed Hat Advanced Cluster Management for Kubernetes v2.16.4 security update
- Red Hat Advanced Cluster Management for Kubernetes 2.16 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9 +19
- RHSA-2026:60390 Released 2026-08-26 · Red Hat rating ImportantRed Hat Advanced Cluster Management for Kubernetes v2.13.11 security update
- Red Hat Advanced Cluster Management for Kubernetes 2.13 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9 +23
- RHSA-2026:60388 Released 2026-08-26 · Red Hat rating ImportantRed Hat Advanced Cluster Management for Kubernetes v2.14.4 security update
- Red Hat Advanced Cluster Management for Kubernetes 2.14 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9 +26
- RHSA-2026:60389 Released 2026-08-26 · Red Hat rating ImportantRed Hat Advanced Cluster Management for Kubernetes v2.15.6 security update
- Red Hat Advanced Cluster Management for Kubernetes 2.15 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9, registry.redhat.io/rhacm2/acm-must-gather-rhel9 +19
- RHSA-2026:60387 Released 2026-08-26 · Red Hat rating ImportantRed Hat Advanced Cluster Management for Kubernetes v2.11.11 security update
- Red Hat Advanced Cluster Management for Kubernetes 2.11 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-must-gather-rhel9, registry.redhat.io/rhacm2/acm-prometheus-config-reloader-rhel9 +24
- RHSA-2026:60386 Released 2026-08-26 · Red Hat rating ImportantRed Hat Advanced Cluster Management for Kubernetes v2.17.1 security update
- Red Hat Advanced Cluster Management for Kubernetes 2.17 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9 +31
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Multicluster Global Hub 1.4.9 | Fixed | RHSA-2026:67516 |
| Multicluster Global Hub 1.5.8 | Fixed | RHSA-2026:71597 |
| Multicluster Global Hub 1.6.6 | Fixed | RHSA-2026:73419 |
| Red Hat Advanced Cluster Management for Kubernetes 2.11 | Fixed | RHSA-2026:60387 |
| Red Hat Advanced Cluster Management for Kubernetes 2.13 | Fixed | RHSA-2026:60390 |
| Red Hat Advanced Cluster Management for Kubernetes 2.14 | Fixed | RHSA-2026:60388 |
| Red Hat Advanced Cluster Management for Kubernetes 2.15 | Fixed | RHSA-2026:60389 |
| Red Hat Advanced Cluster Management for Kubernetes 2.16 | Fixed | RHSA-2026:60391 |
| Red Hat Advanced Cluster Management for Kubernetes 2.17 | Fixed | RHSA-2026:60386 |
Not affected: 12 products
- Multicluster Global Hub 1.4.9
- Multicluster Global Hub 1.5.8
- Multicluster Global Hub 1.6.6
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat Advanced Cluster Management for Kubernetes 2.11
- Red Hat Advanced Cluster Management for Kubernetes 2.13
- Red Hat Advanced Cluster Management for Kubernetes 2.14
- Red Hat Advanced Cluster Management for Kubernetes 2.15
- Red Hat Advanced Cluster Management for Kubernetes 2.16
- Red Hat Advanced Cluster Management for Kubernetes 2.17
- Red Hat OpenShift Container Platform 4
- Red Hat Openshift Data Foundation 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-66792
- 2026-10-03 Alias added: GHSA-8jj2-p7p7-6mr3
References
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Sources
- CVE-2026-66792 · CVE Program
- CVE-2026-66792 · NVD
- FIRST EPSS
- GHSA-8jj2-p7p7-6mr3 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-66792 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences