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6 vulnerabilities found for Multicluster Global Hub 1.4.9 by Red Hat
CVE-2026-66792 (GCVE-0-2026-66792)
Vulnerability from nvd – Published: 2026-08-17 18:12 – Updated: 2026-09-24 16:15
VLAI
EPSS
VEX
Title
Multicloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() trusts user-settable annotations on managed clusters
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.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:53 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:60386 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60387 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60388 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60389 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60390 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60391 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67516 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:71597 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-66792 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2507537 | issue-trackingx_refsource_REDHAT |
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355439 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355599 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355417 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789515408 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789515288 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789478830 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 |
Unaffected:
1787262214 , < *
(rpm)
cpe:/a:redhat:acm:2.11::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 |
Unaffected:
1787263584 , < *
(rpm)
cpe:/a:redhat:acm:2.11::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1787259284 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1787263693 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
Unaffected:
1786976940 , < *
(rpm)
cpe:/a:redhat:acm:2.14::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
Unaffected:
1787170830 , < *
(rpm)
cpe:/a:redhat:acm:2.14::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 |
Unaffected:
1787238598 , < *
(rpm)
cpe:/a:redhat:acm:2.15::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 |
Unaffected:
1787240030 , < *
(rpm)
cpe:/a:redhat:acm:2.15::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 |
Unaffected:
1787242135 , < *
(rpm)
cpe:/a:redhat:acm:2.16::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 |
Unaffected:
1787242321 , < *
(rpm)
cpe:/a:redhat:acm:2.16::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 |
Unaffected:
1787242131 , < *
(rpm)
cpe:/a:redhat:acm:2.17::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 |
Unaffected:
1787242108 , < *
(rpm)
cpe:/a:redhat:acm:2.17::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 |
cpe:/a:redhat:acm:2
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat Openshift Data Foundation 4 |
cpe:/a:redhat:openshift_data_foundation:4
|
Date Public
2026-08-17 17:25
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CVE-2026-71577 (GCVE-0-2026-71577)
Vulnerability from nvd – Published: 2026-08-10 16:43 – Updated: 2026-09-24 17:53
VLAI
EPSS
VEX
Title
Multicluster-global-hub: multicluster-global-hub: spec-topic read acl leaks bootstrap kubeconfigs to all managed hubs during migration
Summary
A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 01:59 UTC
CWE
- CWE-522 - Insufficiently Protected Credentials
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:67516 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67842 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:68515 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:71597 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-71577 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2512514 | issue-trackingx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355417 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789478830 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Multicluster Global Hub 1.7.3 |
Unaffected:
1788372439 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.7::el9 |
|
| Red Hat | Multicluster Global Hub 1.8.2 |
Unaffected:
1788359461 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.8::el9 |
Date Public
2026-08-10 14:38
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CVE-2026-71576 (GCVE-0-2026-71576)
Vulnerability from nvd – Published: 2026-08-10 16:41 – Updated: 2026-09-24 16:15
VLAI
EPSS
VEX
Title
Multicluster-global-hub: multicluster-global-hub: manager trusts self-asserted evt.source() for leaf-hub identity in all status handlers
Summary
A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can manipulate the self-asserted source identity. This allows the attacker to falsify or delete critical data, such as compliance, inventory, and cluster health information, belonging to other hubs in the database.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 15:44 UTC
CWE
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:67516 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67842 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:68515 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:71597 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-71576 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2512513 | issue-trackingx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355599 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789515288 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Multicluster Global Hub 1.7.3 |
Unaffected:
1788377424 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.7::el9 |
|
| Red Hat | Multicluster Global Hub 1.8.2 |
Unaffected:
1788359454 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.8::el9 |
Date Public
2026-08-10 14:38
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CVE-2026-66792 (GCVE-0-2026-66792)
Vulnerability from cvelistv5 – Published: 2026-08-17 18:12 – Updated: 2026-09-24 16:15
VLAI
EPSS
VEX
Title
Multicloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() trusts user-settable annotations on managed clusters
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.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:53 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:60386 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60387 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60388 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60389 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60390 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:60391 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67516 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:71597 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-66792 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2507537 | issue-trackingx_refsource_REDHAT |
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355439 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355599 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355417 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789515408 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789515288 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789478830 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 |
Unaffected:
1787262214 , < *
(rpm)
cpe:/a:redhat:acm:2.11::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 |
Unaffected:
1787263584 , < *
(rpm)
cpe:/a:redhat:acm:2.11::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1787259284 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1787263693 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
Unaffected:
1786976940 , < *
(rpm)
cpe:/a:redhat:acm:2.14::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
Unaffected:
1787170830 , < *
(rpm)
cpe:/a:redhat:acm:2.14::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 |
Unaffected:
1787238598 , < *
(rpm)
cpe:/a:redhat:acm:2.15::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 |
Unaffected:
1787240030 , < *
(rpm)
cpe:/a:redhat:acm:2.15::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 |
Unaffected:
1787242135 , < *
(rpm)
cpe:/a:redhat:acm:2.16::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 |
Unaffected:
1787242321 , < *
(rpm)
cpe:/a:redhat:acm:2.16::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 |
Unaffected:
1787242131 , < *
(rpm)
cpe:/a:redhat:acm:2.17::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 |
Unaffected:
1787242108 , < *
(rpm)
cpe:/a:redhat:acm:2.17::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 |
cpe:/a:redhat:acm:2
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat Openshift Data Foundation 4 |
cpe:/a:redhat:openshift_data_foundation:4
|
Date Public
2026-08-17 17:25
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"vendor": "Red Hat",
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"defaultStatus": "affected",
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"product": "Red Hat Advanced Cluster Management for Kubernetes 2.11",
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CVE-2026-71577 (GCVE-0-2026-71577)
Vulnerability from cvelistv5 – Published: 2026-08-10 16:43 – Updated: 2026-09-24 17:53
VLAI
EPSS
VEX
Title
Multicluster-global-hub: multicluster-global-hub: spec-topic read acl leaks bootstrap kubeconfigs to all managed hubs during migration
Summary
A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 01:59 UTC
CWE
- CWE-522 - Insufficiently Protected Credentials
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:67516 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67842 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:68515 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:71597 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-71577 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2512514 | issue-trackingx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355417 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789478830 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Multicluster Global Hub 1.7.3 |
Unaffected:
1788372439 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.7::el9 |
|
| Red Hat | Multicluster Global Hub 1.8.2 |
Unaffected:
1788359461 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.8::el9 |
Date Public
2026-08-10 14:38
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CVE-2026-71576 (GCVE-0-2026-71576)
Vulnerability from cvelistv5 – Published: 2026-08-10 16:41 – Updated: 2026-09-24 16:15
VLAI
EPSS
VEX
Title
Multicluster-global-hub: multicluster-global-hub: manager trusts self-asserted evt.source() for leaf-hub identity in all status handlers
Summary
A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can manipulate the self-asserted source identity. This allows the attacker to falsify or delete critical data, such as compliance, inventory, and cluster health information, belonging to other hubs in the database.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 15:44 UTC
CWE
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:67516 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67842 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:68515 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:71597 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-71576 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2512513 | issue-trackingx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected:
1788355599 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
|
| Red Hat | Multicluster Global Hub 1.5.8 |
Unaffected:
1789515288 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.5::el9 |
|
| Red Hat | Multicluster Global Hub 1.7.3 |
Unaffected:
1788377424 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.7::el9 |
|
| Red Hat | Multicluster Global Hub 1.8.2 |
Unaffected:
1788359454 , < *
(rpm)
cpe:/a:redhat:multicluster_globalhub:1.8::el9 |
Date Public
2026-08-10 14:38
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