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CVE-2026-71577

Estado: Pendiente de análisisMedia (6.3)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Multicluster-global-hub — Multicluster-global-hubAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-71577",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-71577",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-11T01:59:24.928197Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secalert@redhat.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
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      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:/a:redhat:multicluster_globalhub:1.4::el9"
          ],
          "vendor": "Red Hat",
          "product": "Multicluster Global Hub 1.4.9",
          "versions": [
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              "status": "unaffected",
              "version": "1788355417",
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          "packageName": "multicluster-globalhub/multicluster-globalhub-rhel9-operator",
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          "product": "Multicluster Global Hub 1.5.8",
          "versions": [
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          "vendor": "Red Hat",
          "product": "Multicluster Global Hub 1.6.6",
          "versions": [
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          "collectionURL": "https://catalog.redhat.com/software/containers/",
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          "vendor": "Red Hat",
          "product": "Multicluster Global Hub 1.7.3",
          "versions": [
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          "vendor": "Red Hat",
          "product": "Multicluster Global Hub 1.8.2",
          "versions": [
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          ],
          "vendor": "Red Hat",
          "product": "Multicluster Global Hub 1.8.2",
          "versions": [
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          "collectionURL": "https://catalog.redhat.com/software/containers/",
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  "published": "2026-08-10T17:17:36.197",
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:67516",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:67842",
      "source": "secalert@redhat.com"
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    {
      "url": "https://access.redhat.com/errata/RHSA-2026:68515",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:71597",
      "source": "secalert@redhat.com"
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    {
      "url": "https://access.redhat.com/errata/RHSA-2026:73038",
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      "url": "https://access.redhat.com/security/cve/CVE-2026-71577",
      "source": "secalert@redhat.com"
    },
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2512514",
      "source": "secalert@redhat.com"
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  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
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      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-522"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-09-29T18:17:16.757",
  "sourceIdentifier": "secalert@redhat.com"
}