cve-2026-19033

{
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      "text": "Moderate"
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    "category": "csaf_vex",
    "csaf_version": "2.0",
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      "text": "Copyright © Red Hat, Inc. All rights reserved.",
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        "text": "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.",
        "title": "Terms of Use"
      }
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      "name": "Red Hat Product Security",
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    "references": [
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-19033.json"
      }
    ],
    "title": "bind: BIND: Unauthorized zone content updates via unauthenticated IXFR deltas",
    "tracking": {
      "current_release_date": "2026-09-16T15:20:26+00:00",
      "generator": {
        "date": "2026-09-16T15:20:26+00:00",
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      },
      "id": "CVE-2026-19033",
      "initial_release_date": "2026-09-16T14:10:08.535000+00:00",
      "revision_history": [
        {
          "date": "2026-09-16T14:10:08.535000+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-09-16T14:56:43.168760+00:00",
          "number": "2",
          "summary": "Current version"
        },
        {
          "date": "2026-09-16T15:20:26+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
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          {
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                "name": "Red Hat OpenShift Container Platform 4",
                "product": {
                  "name": "Red Hat OpenShift Container Platform 4",
                  "product_id": "red_hat_openshift_container_platform_4",
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                    "cpe": "cpe:/a:redhat:openshift:4"
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            "name": "Red Hat OpenShift Container Platform 4"
          },
          {
            "category": "product_version",
            "name": "openshift/ose-rhel-coreos-8",
            "product": {
              "name": "openshift/ose-rhel-coreos-8",
              "product_id": "openshift/ose-rhel-coreos-8",
              "product_identification_helper": {
                "purl": "pkg:oci/ose-rhel-coreos-8@412.86.202608241157-0?repository_url=registry.redhat.io/openshift/ose-rhel-coreos-8"
              }
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          },
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            "name": "openshift/ose-rhel-coreos-9",
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              "name": "openshift/ose-rhel-coreos-9",
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    "relationships": [
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        "full_product_name": {
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-19033",
      "cwe": {
        "id": "CWE-347",
        "name": "Improper Verification of Cryptographic Signature"
      },
      "discovery_date": "2026-09-16T14:35:16.203051+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2535479"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in bind. A remote attacker without a valid TSIG (Transaction Signature) can send unauthorized zone contents to a secondary server during a multi-message TCP IXFR (Incremental Zone Transfer). The `named` process may apply this unauthenticated data before the TSIG signature is verified. If the signature never arrives, `named` does not revert to its previous state, leading to the serving of unauthorized zone data and compromising information integrity.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "bind: BIND: Unauthorized zone content updates via unauthenticated IXFR deltas",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "known_affected": [
          "red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-8",
          "red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-9"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-19033"
        },
        {
          "category": "external",
          "summary": "RHBZ#2535479",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2535479"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-19033",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-19033"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-19033",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19033"
        },
        {
          "category": "external",
          "summary": "https://downloads.isc.org/isc/bind9/9.20.29",
          "url": "https://downloads.isc.org/isc/bind9/9.20.29"
        },
        {
          "category": "external",
          "summary": "https://downloads.isc.org/isc/bind9/9.21.26",
          "url": "https://downloads.isc.org/isc/bind9/9.21.26"
        },
        {
          "category": "external",
          "summary": "https://kb.isc.org/docs/cve-2026-19033",
          "url": "https://kb.isc.org/docs/cve-2026-19033"
        }
      ],
      "release_date": "2026-09-16T14:10:08.535000+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "Fix deferred",
          "product_ids": [
            "red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-8",
            "red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-9"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L",
            "version": "3.1"
          },
          "products": [
            "red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-8",
            "red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-9"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate",
          "product_ids": [
            "red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-8",
            "red_hat_openshift_container_platform_4:openshift/ose-rhel-coreos-9"
          ]
        }
      ],
      "title": "bind: BIND: Unauthorized zone content updates via unauthenticated IXFR deltas"
    }
  ]
}