{
    "document": {
        "category": "csaf_base",
        "csaf_version": "2.0",
        "distribution": {
            "tlp": {
                "label": "WHITE"
            }
        },
        "lang": "en",
        "notes": [
            {
                "category": "legal_disclaimer",
                "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
            }
        ],
        "publisher": {
            "category": "coordinator",
            "contact_details": "cert@ncsc.nl",
            "name": "National Cyber Security Centre",
            "namespace": "https://www.ncsc.nl/"
        },
        "title": "CVE-2026-4649",
        "tracking": {
            "current_release_date": "2026-03-25T00:37:51.841105Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-4649",
            "initial_release_date": "2026-03-24T20:44:05.985829Z",
            "revision_history": [
                {
                    "date": "2026-03-24T20:44:05.985829Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (3).| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-03-24T20:44:11.345234Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-03-24T20:44:30.345574Z",
                    "number": "3",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-03-24T20:44:33.700770Z",
                    "number": "4",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-24T20:46:35.658557Z",
                    "number": "5",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-24T20:49:56.765593Z",
                    "number": "6",
                    "summary": "Unknown change."
                },
                {
                    "date": "2026-03-24T21:33:44.829842Z",
                    "number": "7",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-25T00:37:01.530453Z",
                    "number": "8",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (22).| Product Identifiers created (11).| Product Remediations created (22).| References created (3).| CWES updated (1).| Vendor_assessment created."
                },
                {
                    "date": "2026-03-25T00:37:17.324072Z",
                    "number": "9",
                    "summary": "NCSC Score updated."
                }
            ],
            "status": "interim",
            "version": "9"
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    "vulnerabilities": [
        {
            "cve": "CVE-2026-4649",
            "cwe": {
                "id": "CWE-306",
                "name": "Missing Authentication for Critical Function"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "Apache Artemis before version 2.52.0 is affected by an authentication bypass flaw which allows reading all messages exchanged via the broker and injection of new message ( CVE-2026-27446 https://www.cve.org/CVERecord ). Since KNIME Business Hub uses Apache Artemis it is also affected by the issue. However, since Apache Artemis is not exposed to the outside it requires at least normal user privileges and the ability to execute workflows in an executor. Such a user can install and register a federated mirror without authentication to the original Apache Artemis instance and thereby read all internal messages and inject new messages.\n\nThe issue affects all versions of KNIME Business Hub. A fixed version of Apache Artemis is shipped with versions 1.18.0, 1.17.4, and 1.16.3.\n\nWe recommend updating to a fixed version as soon as possible since no workaround is known.",
                    "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/4xxx/CVE-2026-4649.json"
                },
                {
                    "category": "description",
                    "text": "Apache Artemis before version 2.52.0 is affected by an authentication bypass flaw which allows reading all messages exchanged via the broker and injection of new message ( CVE-2026-27446 https://www.cve.org/CVERecord ). Since KNIME Business Hub uses Apache Artemis it is also affected by the issue. However, since Apache Artemis is not exposed to the outside it requires at least normal user privileges and the ability to execute workflows in an executor. Such a user can install and register a federated mirror without authentication to the original Apache Artemis instance and thereby read all internal messages and inject new messages.\n\nThe issue affects all versions of KNIME Business Hub. A fixed version of Apache Artemis is shipped with versions 1.18.0, 1.17.4, and 1.16.3.\n\nWe recommend updating to a fixed version as soon as possible since no workaround is known.",
                    "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-4649"
                },
                {
                    "category": "description",
                    "text": "A flaw was found in Apache Artemis and KNIME Business Hub. A user with normal privileges and the ability to execute workflows in an executor can exploit an authentication bypass vulnerability. This allows the user to install and register a federated mirror without authentication to the original Apache Artemis instance. Consequently, the attacker can read all internal messages and inject new messages, leading to information disclosure and potential data integrity issues.",
                    "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4649.json"
                },
                {
                    "category": "other",
                    "text": "0.00046",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/AU:Y/R:U/V:C/RE:M/U:Amber",
                    "title": "CVSSV4"
                },
                {
                    "category": "other",
                    "text": "5.3",
                    "title": "CVSSV4 base score"
                },
                {
                    "category": "other",
                    "text": "4.0",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "There is cwe data available from source Nvd",
                    "title": "NCSC Score top decreasing factors"
                },
                {
                    "category": "details",
                    "text": "Severity: 2\n",
                    "title": "Vendor assessment"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-5901975",
                    "CSAFPID-5901976",
                    "CSAFPID-5901977",
                    "CSAFPID-1439286",
                    "CSAFPID-1439294",
                    "CSAFPID-1439300",
                    "CSAFPID-1439302",
                    "CSAFPID-1439304",
                    "CSAFPID-1439306",
                    "CSAFPID-1439308",
                    "CSAFPID-1439313",
                    "CSAFPID-1439334",
                    "CSAFPID-1439348",
                    "CSAFPID-2912480",
                    "CSAFPID-5758036",
                    "CSAFPID-5758037",
                    "CSAFPID-5758038",
                    "CSAFPID-5758039",
                    "CSAFPID-5758040",
                    "CSAFPID-5758041",
                    "CSAFPID-5758042",
                    "CSAFPID-5758043",
                    "CSAFPID-5758044",
                    "CSAFPID-5903698",
                    "CSAFPID-5903699"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/4xxx/CVE-2026-4649.json"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-4649"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Source - redhat",
                    "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4649.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd; redhat",
                    "url": "https://www.knime.com/security/advisories#CVE-2026-4649"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-4649"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4649"
                }
            ],
            "remediations": [
                {
                    "category": "mitigation",
                    "details": "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.",
                    "product_ids": [
                        "CSAFPID-1439286",
                        "CSAFPID-1439294",
                        "CSAFPID-1439300",
                        "CSAFPID-1439302",
                        "CSAFPID-1439304",
                        "CSAFPID-1439306",
                        "CSAFPID-1439308",
                        "CSAFPID-1439313",
                        "CSAFPID-1439334",
                        "CSAFPID-1439348",
                        "CSAFPID-2912480",
                        "CSAFPID-5758036",
                        "CSAFPID-5758037",
                        "CSAFPID-5758038",
                        "CSAFPID-5758039",
                        "CSAFPID-5758040",
                        "CSAFPID-5758041",
                        "CSAFPID-5758042",
                        "CSAFPID-5758043",
                        "CSAFPID-5758044",
                        "CSAFPID-5903698",
                        "CSAFPID-5903699"
                    ]
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
                        "baseScore": 6.1,
                        "baseSeverity": "MEDIUM"
                    },
                    "products": [
                        "CSAFPID-1439286",
                        "CSAFPID-1439294",
                        "CSAFPID-1439300",
                        "CSAFPID-1439302",
                        "CSAFPID-1439304",
                        "CSAFPID-1439306",
                        "CSAFPID-1439308",
                        "CSAFPID-1439313",
                        "CSAFPID-1439334",
                        "CSAFPID-1439348",
                        "CSAFPID-2912480",
                        "CSAFPID-5758036",
                        "CSAFPID-5758037",
                        "CSAFPID-5758038",
                        "CSAFPID-5758039",
                        "CSAFPID-5758040",
                        "CSAFPID-5758041",
                        "CSAFPID-5758042",
                        "CSAFPID-5758043",
                        "CSAFPID-5758044",
                        "CSAFPID-5901975",
                        "CSAFPID-5901976",
                        "CSAFPID-5901977",
                        "CSAFPID-5903698",
                        "CSAFPID-5903699"
                    ]
                }
            ],
            "title": "CVE-2026-4649"
        }
    ]
}