EUVD-2026-19690Published

Rhacm: open cluster management (ocm): cross-cluster privilege escalation via improper kubernetes client certificate renewal validation

cve-program · CVE-2026-4740

Published

multicluster-engine/registration-rhel9

https://catalog.redhat.com/software/containers/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "multicluster engine for Kubernetes 2.1",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "multicluster-engine/registration-rhel9",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "1776881164",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine:2.10::el9"
                    ]
                }

multicluster-engine/registration-rhel9

https://catalog.redhat.com/software/containers/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "multicluster engine for Kubernetes 2.11",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "multicluster-engine/registration-rhel9",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "1777478390",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine:2.11::el9"
                    ]
                }

multicluster-engine/registration-rhel9

https://catalog.redhat.com/software/containers/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "multicluster engine for Kubernetes 2.6",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "multicluster-engine/registration-rhel9",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "1775977180",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine:2.6::el9"
                    ]
                }

multicluster-engine/registration-rhel9

https://catalog.redhat.com/software/containers/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "multicluster engine for Kubernetes 2.8",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "multicluster-engine/registration-rhel9",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "1775638726",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine:2.8::el9"
                    ]
                }

multicluster-engine/registration-rhel9

https://catalog.redhat.com/software/containers/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "multicluster engine for Kubernetes 2.9",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "multicluster-engine/registration-rhel9",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "1776445095",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine:2.9::el9"
                    ]
                }

multicluster-engine/addon-manager-rhel9

https://access.redhat.com/downloads/content/package-browser/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "Multicluster Engine for Kubernetes",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "multicluster-engine/addon-manager-rhel9",
                    "defaultStatus": "unknown",
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine"
                    ]
                }

multicluster-engine/maestro-rhel9

https://access.redhat.com/downloads/content/package-browser/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "Multicluster Engine for Kubernetes",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "multicluster-engine/maestro-rhel9",
                    "defaultStatus": "unknown",
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine"
                    ]
                }

multicluster-engine/managedcluster-import-controller-rhel9

https://access.redhat.com/downloads/content/package-browser/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "Multicluster Engine for Kubernetes",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "multicluster-engine/managedcluster-import-controller-rhel9",
                    "defaultStatus": "unknown",
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine"
                    ]
                }

multicluster-engine/placement-rhel9

https://access.redhat.com/downloads/content/package-browser/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "Multicluster Engine for Kubernetes",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "multicluster-engine/placement-rhel9",
                    "defaultStatus": "unknown",
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine"
                    ]
                }

multicluster-engine/registration-operator-rhel9

https://access.redhat.com/downloads/content/package-browser/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "Multicluster Engine for Kubernetes",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "multicluster-engine/registration-operator-rhel9",
                    "defaultStatus": "unknown",
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine"
                    ]
                }

multicluster-engine/work-rhel9

https://access.redhat.com/downloads/content/package-browser/

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Red Hat",
                    "product": "Multicluster Engine for Kubernetes",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "multicluster-engine/work-rhel9",
                    "defaultStatus": "unknown",
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine"
                    ]
                }

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

euvd · EUVD-2026-19690

Published

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

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

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

nvd · CVE-2026-4740

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-295

Original publisher date fields

published: 2026-04-07T15:17:46.797

lastModified: 2026-10-26T21:10:00.170

1 source CPE criteria · context only

cpe:2.3:a:redhat:advanced_cluster_management_for_kubernetes:-:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

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

osv · GHSA-q4gv-pjmh-c735

Published

open-cluster-management.io/ocm

SEMVER · introduced 0 → fixed 1.2.1

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

osv · GO-2026-5564

Published

open-cluster-management.io/ocm

SEMVER · introduced 0 → fixed 1.2.1

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