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EUVD-2026-19690Published

A flaw was found in Open Cluster Management (OCM), the technology underlying Red Hat Advanced Cluster Management (ACM). Improper validation of Kubernetes client certificate renewal allows a managed cluster administrator to forge a client ce…

Exact source revision recorded 28 Oct 2026 06:17:50 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2026-19690

Published

A flaw was found in Open Cluster Management (OCM), the technology underlying Red Hat Advanced Cluster Management (ACM). Improper validation of Kubernetes client certificate renewal allows a managed cluster administrator to forge a client certificate that can be approved by the OCM controller. This enables cross-cluster privilege escalation and may allow an attacker to gain control over other managed clusters, including the hub cluster.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Apr 7, 2026, 2:30:36 PM

dateUpdated: Sep 9, 2026, 12:04:44 PM

5 related source bulletins · separate from aliases

RHSA-2026:9848: Red Hat Security Advisory: multicluster engine for Kubernetes v2.6.10 security update

CVE-2025-13465 · CVE-2025-61726 · CVE-2025-61729 · CVE-2025-68121 · CVE-2026-4740 · CVE-2026-22029 · CVE-2026-25639 · CVE-2026-29063

RHSA-2026:8218: Red Hat Security Advisory: multicluster engine for Kubernetes v2.8.5 security update

CVE-2025-13465 · CVE-2025-47907 · CVE-2025-58183 · CVE-2025-61726 · CVE-2025-61729 · CVE-2025-68121 · CVE-2026-4740 · CVE-2026-22029 · CVE-2026-25639 · CVE-2026-29063

RHSA-2026:13542: Red Hat Security Advisory: multicluster engine for Kubernetes v2.10.2 security update

CVE-2025-13465 · CVE-2025-58183 · CVE-2025-61726 · CVE-2025-61729 · CVE-2025-68121 · CVE-2026-4740 · CVE-2026-22029 · CVE-2026-25639 · CVE-2026-29063 · CVE-2026-40175

RHSA-2026:13853: Red Hat Security Advisory: multicluster engine for Kubernetes v2.11.1 security update

CVE-2026-4740 · CVE-2026-29063

RHSA-2026:11414: Red Hat Security Advisory: multicluster engine for Kubernetes v2.9.3 security update

CVE-2025-13465 · CVE-2025-61726 · CVE-2025-68121 · CVE-2026-4740 · CVE-2026-25639 · CVE-2026-29063 · CVE-2026-40175

Source published
Apr 7, 2026, 2:30:36 PM (timezone not stated)
Source modified
Sep 9, 2026, 12:04:44 PM (timezone not stated)
Observed here
28 Oct 2026 06:17:50 UTC
Source terms
ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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Sources read 30 Oct 04:09 UTC · 272 of 272 readable · 270 fully read · documentation 469/469 current

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