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Red Hat Product Errata RHSA-2026:52946 - Security Advisory
Issued:
2026-08-10
Updated:
2026-08-10

RHSA-2026:52946 - Security Advisory

  • Overview
  • Updated Images

Synopsis

Critical: Multicluster Global Hub 1.8.1 security update

Type/Severity

Security Advisory: Critical

Topic

Multicluster Global Hub v1.8.1 general availability release images, which provide security fixes, bug fixes, and updated container images.

Red Hat Product Security has rated this update as having a security impact of Critical.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section.

Description

Red Hat multicluster global hub is a set of components that enable you to import one or more hub clusters and manage them from a single hub cluster.

Solution

For more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation:

https://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.17/html/multicluster_global_hub/index

Affected Products

  • Multicluster Global Hub

Fixes

(none)

CVEs

  • CVE-2026-27145
  • CVE-2026-33376
  • CVE-2026-33377
  • CVE-2026-53492
  • CVE-2026-55677
  • CVE-2026-55969
  • CVE-2026-66801

References

  • https://access.redhat.com/security/updates/classification/

amd64

registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9@sha256:eac0133e4c8130d6ee373faa034e920070db1515212bfd0c9a6d559cd31a6647
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9@sha256:8607fc079dce6f19c28d865f795d8ebad05cf4fec6f87e5e524d2a038430edc5
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9@sha256:7c3acb82221c3da1df4cba5d655ae19120f05ee22d03dc149b7c6a9db7a0c076
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-operator-bundle@sha256:9fa9b4a4984fa2c8057ec7375a613a302bf6a99ec5c6059dfb43e35fb3a29ae8
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:351c748dd43ee596b8565f4742569fec5dd6c41f6c0646f4b58ab1ee4bc8b603
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-postgres-exporter-rhel9@sha256:737736d10e925c7f8de9560552735aa0bc4404470a3a4fa5e60b63d383b28037

ppc64le

registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9@sha256:42d8ea192a05154b22fb0109c163791088130a10471b3c9ab03b8d55b7ee8fcf
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9@sha256:20dd82ac568612c5a3ed26229079a0fe338a76052e2a96c13d4a9ce88be430c3
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9@sha256:0d1f2503b10bda1c3d075a57c7ba23759dd42101edda14edf59a4c05da0b095f
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:068e16c4575f853f8a292bc3f34d50ee0fdb76e410d5e6a273399d5e7533ec31
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-postgres-exporter-rhel9@sha256:660024abdf32887c978d5e19b7a968c0d04d94f50937aa948d0c8b2cfd74e548

s390x

registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9@sha256:09f57ff7ccf26c7034221ac57936aa8ae6e6ef1b6406d0050949917ca68ce146
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9@sha256:5292916fe3b9e955345d049a003fda95983ef54495f9af1b16d1ed7587266249
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9@sha256:ca8bf1d0e387476163e21d18dd6ab195f0348ef498fe61b058fb284d62b131cb
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:f1f58a76e9278fbe234cf6ca99383a96fabd716186d9f1908080b4532ce3c7fb
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-postgres-exporter-rhel9@sha256:19e202dabb23f7c070fcf589ce4fd6f36ae7ea9813d947ace90b60e43b9aeac9

arm64

registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9@sha256:0cd013a1552dae6134812eb39c9ddf46b5a5b16c8f433fdc95f16f8765a72a18
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9@sha256:629c601f75821fc79cc905ddeef2301c20f89932a5bc4b2d71b86deb5da75b63
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9@sha256:69229a78e4a5f37c5b3ecce7b8056fd43ab7aa3ec581a0b180e38de6866253c2
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-rhel9-operator@sha256:b421850439207c883866768499822794db6c04a473f8fa80d553e3b35e595e33
registry.redhat.io/multicluster-globalhub/multicluster-globalhub-postgres-exporter-rhel9@sha256:0f4674f643df1e8cfe5b11d9c992e85b32dc915ab951c080b7456acd34069fdd

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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