CVE-2026-66780 (GCVE-0-2026-66780)
Vulnerability from cvelistv5
Published
2026-08-18 17:32
Modified
2026-10-19 17:01
CWE
  • CWE-532 - Insertion of Sensitive Information into Log File
Summary
A flaw was found in the submariner-operator component. The `submariner-k8s-broker-cluster` Role, which is assigned to joined clusters, possesses excessive permissions. This allows a compromised cluster to alter network configurations, specifically by overwriting other clusters' endpoint information. Consequently, an attacker can redirect inter-cluster tunnel traffic, enabling a Man-in-the-Middle (MITM) attack across the entire cluster mesh.
References
https://access.redhat.com/errata/RHSA-2026:63016 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:67538 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:67539 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:67540 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:67541 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:67542 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:67543 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72880 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:85227 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-66780 vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2507524 issue-tracking, x_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11 Unaffected: 1789135606   < *
    cpe:/a:redhat:acm:2.11::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 Unaffected: 1789131397   < *
    cpe:/a:redhat:acm:2.13::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 Unaffected: 1789136328   < *
    cpe:/a:redhat:acm:2.14::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 Unaffected: 1789136327   < *
    cpe:/a:redhat:acm:2.15::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 Unaffected: 1789136320   < *
    cpe:/a:redhat:acm:2.16::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 Unaffected: 1787854416   < *
    cpe:/a:redhat:acm:2.16::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 Unaffected: 1790670243   < *
    cpe:/a:redhat:acm:2.16::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 Unaffected: 1790670912   < *
    cpe:/a:redhat:acm:2.16::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 Unaffected: 1788105072   < *
    cpe:/a:redhat:acm:2.17::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 Unaffected: 1788073481   < *
    cpe:/a:redhat:acm:2.17::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 Unaffected: 1788572527   < *
    cpe:/a:redhat:acm:2.17::el9
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   Red Hat Red Hat Advanced Cluster Management for Kubernetes 2     cpe:/a:redhat:acm:2
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Show details on NVD website


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\"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:67540\", \"name\": \"RHSA-2026:67540\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:67541\", \"name\": \"RHSA-2026:67541\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:67542\", \"name\": \"RHSA-2026:67542\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:67543\", \"name\": \"RHSA-2026:67543\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:72880\", \"name\": \"RHSA-2026:72880\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:85227\", \"name\": \"RHSA-2026:85227\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2026-66780\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2507524\", \"name\": \"RHBZ#2507524\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.\"}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in the submariner-operator component. 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      "cveMetadata": "{\"cveId\": \"CVE-2026-66780\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-19T17:01:55.013Z\", \"dateReserved\": \"2026-07-27T17:51:24.885Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2026-08-18T17:32:00.879Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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