RHSA-2026:94562

Vulnerability from csaf_redhat - Published: 2026-11-03 14:02 - Updated: 2026-11-13 17:30
Summary
Red Hat Security Advisory: Red Hat OpenShift for Windows Containers 11.0 product release
Severity
Critical
Notes
Topic: The components for Red Hat OpenShift for Windows Containers 11.0 are now available
Details: Red Hat OpenShift for Windows Containers allows you to deploy Windows container workloads running on Windows Server containers.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-53488

A flaw was found in containerd, an open-source container runtime. The Container Runtime Interface (CRI) plugin, which manages container operations, fails to validate labels propagated from an image configuration to a container. This oversight could enable an attacker to execute arbitrary commands on the host system through a plugin that processes these unvalidated labels. The primary impact is host-root command execution, allowing unauthorized control over the underlying system.

8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-78 - Improper Neutralization of Special Elements used in an OS Command
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64 —
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64 —
Workaround
Threats
Impact Important
CVE-2026-54099

A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A compromised Windows worker node that holds WICD credentials can submit a CSR that is auto-approved and signed by the cluster, yielding a client certificate that grants cluster-administrator privileges and enabling full cluster takeover.

8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-269 - Improper Privilege Management
Affected products
Fixed 1 product, the same list as for CVE-2026-53488
Known not affected 1 product, the same list as for CVE-2026-53488
Threats
Impact Important
CVE-2026-76654

A flaw was found in Kubernetes kubelet on Windows nodes. When kubelet resolves a volume subPath that is a symbolic link, it does not reject an ordinary UNC network path. Following that link causes Windows to authenticate to the remote share with NTLM, exposing the NetNTLMv2 hash of the kubelet account. That hash may be cracked or, if the node is domain-joined, used in an NTLM relay.

5.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
CWE-59 - Improper Link Resolution Before File Access
Affected products
Fixed 1 product, the same list as for CVE-2026-53488
Known not affected 1 product, the same list as for CVE-2026-53488
Threats
Impact Moderate
CVE-2026-111943

A flaw was found in Go's crypto/x509 package. The certificate verification process fails to block trust in intermediate certificates associated with a compromised Certificate Authority (CA). A remote attacker presenting a certificate signed by these intermediate authorities can impersonate legitimate servers during secure connections. This flaw can enable an attacker to conduct a man-in-the-middle (MitM) attack to intercept or alter confidential communications.

6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE-295 - Improper Certificate Validation
Affected products
Fixed 1 product, the same list as for CVE-2026-53488
Known not affected 1 product, the same list as for CVE-2026-53488
Threats
Impact Important
CVE-2026-114406

The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak private keys issued by the eMudhra certificate authority. A man-in-the-middle attacker could use this flaw to issue certificates for arbitrary host names signed by the weak intermediate CA certificates, which would be considered trusted by a TLS/SSL client using system CA store and cause such clients to connect to malicious sites. Due to inability to only distrust specific intermediate certificates in all clients using the system CA store, root CA certificates of authorities that signed weak intermediate CA certificates are being removed.

6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE-295 - Improper Certificate Validation
Affected products
Fixed 1 product, the same list as for CVE-2026-53488
Known not affected 1 product, the same list as for CVE-2026-53488
Threats
Impact Critical
References
URL Category
https://access.redhat.com/errata/RHSA-2026:94562 self
https://access.redhat.com/security/updates/classi… external
https://docs.redhat.com/en/documentation/openshif… external
https://access.redhat.com/security/cve/CVE-2026-111943 external
https://access.redhat.com/security/cve/CVE-2026-114406 external
https://access.redhat.com/security/cve/CVE-2026-53488 external
https://access.redhat.com/security/cve/CVE-2026-76654 external
https://access.redhat.com/security/cve/CVE-2026-54099 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-53488 self
https://bugzilla.redhat.com/show_bug.cgi?id=2495815 external
https://www.cve.org/CVERecord?id=CVE-2026-53488 external
https://nvd.nist.gov/vuln/detail/CVE-2026-53488 external
https://github.com/containerd/containerd/security… external
https://access.redhat.com/security/cve/CVE-2026-54099 self
https://bugzilla.redhat.com/show_bug.cgi?id=2487950 external
https://www.cve.org/CVERecord?id=CVE-2026-54099 external
https://nvd.nist.gov/vuln/detail/CVE-2026-54099 external
https://access.redhat.com/security/cve/CVE-2026-76654 self
https://bugzilla.redhat.com/show_bug.cgi?id=2526745 external
https://www.cve.org/CVERecord?id=CVE-2026-76654 external
https://nvd.nist.gov/vuln/detail/CVE-2026-76654 external
https://github.com/openshift/kubernetes/pull/2793 external
https://access.redhat.com/security/cve/CVE-2026-111943 self
https://bugzilla.redhat.com/show_bug.cgi?id=2556068 external
https://access.redhat.com/security/vulnerabilitie… external
https://www.cve.org/CVERecord?id=CVE-2026-111943 external
https://nvd.nist.gov/vuln/detail/CVE-2026-111943 external
https://github.com/golang/go/issues/82345 external
https://groups.google.com/g/golang-nuts/c/K22sG2AYnKU external
https://pkg.go.dev/vuln/GO-2026-6809 external
https://access.redhat.com/security/cve/CVE-2026-114406 self
https://bugzilla.redhat.com/show_bug.cgi?id=2556046 external
https://www.cve.org/CVERecord?id=CVE-2026-114406 external
https://nvd.nist.gov/vuln/detail/CVE-2026-114406 external
To clipboard 

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          "text": "A flaw was found in containerd where the CRI plugin propagates labels from an image configuration (LABEL instruction in a Dockerfile) to a container without validation. This may result in executing an arbitrary command on the host via a plugin that consumes container labels for operations, such as the restart-monitor binary:// logger. An attacker who can cause a crafted container image to be pulled and run can achieve host-level code execution.",
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          "details": "For Windows Machine Config Operator upgrades, see the following documentation: https://docs.redhat.com/en/documentation/openshift_container_platform/5.0/html-single/windows_container_support_for_openshift/index#windows-node-upgrades",
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          "url": "https://access.redhat.com/errata/RHSA-2026:94562"
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          "category": "workaround",
          "details": "Restrict container image pulls to trusted registries using admission policies or image signature verification. Where containerd is used as the container runtime, disable or restrict the binary:// logger URI scheme in the containerd configuration to prevent the label-to-logger attack path.",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64",
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
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          "category": "impact",
          "details": "Important"
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        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64"
          ]
        }
      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2487950"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A compromised Windows worker node that holds WICD credentials can submit a CSR that is auto-approved and signed by the cluster, yielding a client certificate that grants cluster-administrator privileges and enabling full cluster takeover.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "windows-machine-config-operator: windows-machine-config-operator: WICD CSR extra-Organization allows privilege escalation to system:masters",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw affects OpenShift clusters running the Windows Machine Config Operator (WMCO) with one or more Windows worker nodes. Clusters without Windows nodes or without WMCO are not affected. Exploitation requires compromising a Windows worker node and obtaining WICD credentials from that node. Red Hat Security Ratings classify this as Important because a successful attack grants cluster-administrator access from a compromised Windows node.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
        ],
        "known_not_affected": [
          "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-54099"
        },
        {
          "category": "external",
          "summary": "RHBZ#2487950",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487950"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-54099",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-54099"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-54099",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54099"
        }
      ],
      "release_date": "2026-06-10T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-11-03T14:02:41+00:00",
          "details": "For Windows Machine Config Operator upgrades, see the following documentation: https://docs.redhat.com/en/documentation/openshift_container_platform/5.0/html-single/windows_container_support_for_openshift/index#windows-node-upgrades",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:94562"
        },
        {
          "category": "workaround",
          "details": "At this time, no mitigation or workaround is available for this vulnerability. Customers are advised to apply the appropriate updates as they become available.",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64",
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64",
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "windows-machine-config-operator: windows-machine-config-operator: WICD CSR extra-Organization allows privilege escalation to system:masters"
    },
    {
      "cve": "CVE-2026-76654",
      "cwe": {
        "id": "CWE-59",
        "name": "Improper Link Resolution Before File Access"
      },
      "discovery_date": "2026-09-01T11:55:24.565000+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64"
          ]
        }
      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2526745"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Kubernetes kubelet on Windows nodes. When kubelet resolves a volume subPath that is a symbolic link, it does not reject an ordinary UNC network path. Following that link causes Windows to authenticate to the remote share with NTLM, exposing the NetNTLMv2 hash of the kubelet account. That hash may be cracked or, if the node is domain-joined, used in an NTLM relay.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kubelet: kubelet: Subpath symlinking on Windows nodes permits NTLM coercion",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Only Windows workers are in scope. WMCO is what ships and installs kubelet.exe on those nodes. The Linux kubelet used on control plane and RHCOS workers does not include the vulnerable Windows path.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
        ],
        "known_not_affected": [
          "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-76654"
        },
        {
          "category": "external",
          "summary": "RHBZ#2526745",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2526745"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-76654",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-76654"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-76654",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76654"
        },
        {
          "category": "external",
          "summary": "https://github.com/openshift/kubernetes/pull/2793",
          "url": "https://github.com/openshift/kubernetes/pull/2793"
        }
      ],
      "release_date": "2026-09-15T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-11-03T14:02:41+00:00",
          "details": "For Windows Machine Config Operator upgrades, see the following documentation: https://docs.redhat.com/en/documentation/openshift_container_platform/5.0/html-single/windows_container_support_for_openshift/index#windows-node-upgrades",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:94562"
        },
        {
          "category": "workaround",
          "details": "Clusters with no Windows nodes need no change. \nThese steps reduce exposure:\n- Limit who can create pods that schedule onto Windows nodes.\n- Prevent Windows nodes from opening SMB/UNC connections to untrusted networks.",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64",
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64",
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "kubelet: kubelet: Subpath symlinking on Windows nodes permits NTLM coercion"
    },
    {
      "cve": "CVE-2026-111943",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "discovery_date": "2026-10-20T09:38:36.160000+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64"
          ]
        }
      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2556068"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Go\u0027s crypto/x509 package. The certificate verification process fails to block trust in intermediate certificates associated with a compromised Certificate Authority (CA). A remote attacker presenting a certificate signed by these intermediate authorities can impersonate legitimate servers during secure connections. This flaw can enable an attacker to conduct a man-in-the-middle (MitM) attack to intercept or alter confidential communications.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated Important because Go applications validating TLS certificates could accept unauthorized certificates issued by distrusted intermediate Certificate Authorities, potentially compromising the integrity and confidentiality of secure network communications. Any Go-based client or server relying on standard certificate verification may be exposed to man-in-the-middle attacks if an attacker intercepts traffic using certificates derived from these intermediate keys. Exploitation requires specific network positioning and certificates generated by the untrusted intermediate authorities, limiting opportunistic widespread abuse.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
        ],
        "known_not_affected": [
          "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-111943"
        },
        {
          "category": "external",
          "summary": "RHBZ#2556068",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2556068"
        },
        {
          "category": "external",
          "summary": "RHSB-2026-012",
          "url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-012"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-111943",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-111943"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-111943",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111943"
        },
        {
          "category": "external",
          "summary": "https://github.com/golang/go/issues/82345",
          "url": "https://github.com/golang/go/issues/82345"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-nuts/c/K22sG2AYnKU",
          "url": "https://groups.google.com/g/golang-nuts/c/K22sG2AYnKU"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6809",
          "url": "https://pkg.go.dev/vuln/GO-2026-6809"
        }
      ],
      "release_date": "2026-10-20T02:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-11-03T14:02:41+00:00",
          "details": "For Windows Machine Config Operator upgrades, see the following documentation: https://docs.redhat.com/en/documentation/openshift_container_platform/5.0/html-single/windows_container_support_for_openshift/index#windows-node-upgrades",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:94562"
        },
        {
          "category": "workaround",
          "details": "See the security bulletin for a detailed mitigation procedure.",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64",
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64",
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates"
    },
    {
      "cve": "CVE-2026-114406",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "discovery_date": "2026-10-20T09:01:55.916000+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64"
          ]
        }
      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2556046"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak private keys issued by the eMudhra certificate authority. A man-in-the-middle attacker could use this flaw to issue certificates for arbitrary host names signed by the weak intermediate CA certificates, which would be considered trusted by a TLS/SSL client using system CA store and cause such clients to connect to malicious sites.\n\nDue to inability to only distrust specific intermediate certificates in all clients using the system CA store, root CA certificates of authorities that signed weak intermediate CA certificates are being removed.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "ca-certificates: Distrust eMudhra intermediate CA certificates due to security concerns",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This CVE has been assigned to track trust store updates to distrust compromised certificates, but is not a vulnerability. For details, see RHSB-2026-012.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
        ],
        "known_not_affected": [
          "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-114406"
        },
        {
          "category": "external",
          "summary": "RHBZ#2556046",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2556046"
        },
        {
          "category": "external",
          "summary": "RHSB-2026-012",
          "url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-012"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-114406",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-114406"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-114406",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114406"
        }
      ],
      "release_date": "2026-10-20T13:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-11-03T14:02:41+00:00",
          "details": "For Windows Machine Config Operator upgrades, see the following documentation: https://docs.redhat.com/en/documentation/openshift_container_platform/5.0/html-single/windows_container_support_for_openshift/index#windows-node-upgrades",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:94562"
        },
        {
          "category": "workaround",
          "details": "See the security bulletin for a detailed mitigation procedure.",
          "product_ids": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64",
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-operator-bundle@sha256:d70546b19f98ca21ab08c06bcb8c65cc79dc09f2091cfe707b8517c6af6621e6_amd64",
            "Red Hat OpenShift for Windows Containers 11.0:registry.redhat.io/openshift4-wincw/windows-machine-config-rhel9-operator@sha256:c0474170c4e8f0d8e9ff6270bc519abb1e9a9c0aab9227a50f20098aed402457_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "ca-certificates: Distrust eMudhra intermediate CA certificates due to security concerns"
    }
  ]
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.