CVE-2026-4649

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4649", "assignerOrgId": "296541fb-a0e3-4ca7-ab3d-683e666d143e", "state": "PUBLISHED", "assignerShortName": "KNIME", "dateReserved": "2026-03-23T12:54:10.876Z", "datePublished": "2026-03-24T08:15:16.512Z", "dateUpdated": "2026-03-24T14:09:36.077Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "296541fb-a0e3-4ca7-ab3d-683e666d143e", "shortName": "KNIME", "dateUpdated": "2026-03-24T08:17:53.633Z"}, "title": "Auth bypass in Apache Artemis allows reading all internal messages", "datePublic": "2026-03-24T08:15:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "CWE-306 Missing authentication for critical function", "type": "CWE"}]}], "affected": [{"vendor": "KNIME", "product": "KNIME Business Hub", "versions": [{"status": "affected", "version": "1.17.0", "lessThan": "1.17.4", "versionType": "semver"}, {"status": "affected", "version": "1.16.0", "lessThan": "1.16.3", "versionType": "semver"}, {"status": "affected", "version": "0.0.0", "lessThan": "1.15.2", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div>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 (<a title=\"https://www.cve.org/CVERecord?id=CVE-2026-27446\" href=\"https://www.cve.org/CVERecord?id=CVE-2026-27446\">CVE-2026-27446</a>). 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.</div><div>The 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.</div><div>We recommend updating to a fixed version as soon as possible since no workaround is known.</div>"}]}], "references": [{"url": "https://www.knime.com/security/advisories#CVE-2026-4649"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "YES", "Recovery": "USER", "valueDensity": "CONCENTRATED", "vulnerabilityResponseEffort": "MODERATE", "providerUrgency": "AMBER", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.3, "vectorString": "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"}}], "source": {"discovery": "UPSTREAM"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-24T14:08:57.157462Z", "id": "CVE-2026-4649", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-24T14:09:36.077Z"}}]}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "KNIME Business Hub", "vendor": "KNIME", "versions": [{"lessThan": "1.17.4", "status": "affected", "version": "1.17.0", "versionType": "semver"}, {"lessThan": "1.16.3", "status": "affected", "version": "1.16.0", "versionType": "semver"}, {"lessThan": "1.15.2", "status": "affected", "version": "0.0.0", "versionType": "semver"}]}], "source": "security@knime.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Apache Artemis anterior a la versi\u00f3n 2.52.0 est\u00e1 afectado por una falla de omisi\u00f3n de autenticaci\u00f3n que permite leer todos los mensajes intercambiados a trav\u00e9s del br\u00f3ker e inyecci\u00f3n de nuevos mensajes ( CVE-2026-27446 https://www.cve.org/CVERecord ). Dado que KNIME Business Hub utiliza Apache Artemis, tambi\u00e9n est\u00e1 afectado por el problema. Sin embargo, dado que Apache Artemis no est\u00e1 expuesto al exterior, requiere al menos privilegios de usuario normal y la capacidad de ejecutar flujos de trabajo en un ejecutor. Dicho usuario puede instalar y registrar un espejo federado sin autenticaci\u00f3n a la instancia original de Apache Artemis y as\u00ed leer todos los mensajes internos e inyectar nuevos mensajes.\n\nEl problema afecta a todas las versiones de KNIME Business Hub. Una versi\u00f3n corregida de Apache Artemis se env\u00eda con las versiones 1.18.0, 1.17.4 y 1.16.3.\n\nRecomendamos actualizar a una versi\u00f3n corregida lo antes posible, ya que no se conoce ninguna soluci\u00f3n alternativa."}], "id": "CVE-2026-4649", "lastModified": "2026-06-17T10:56:58.580", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "USER", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "AMBER", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "CONCENTRATED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:C/RE:M/U:Amber", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "MODERATE"}, "source": "security@knime.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4649", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-24T14:08:57.157462Z", "version": "2.0.3"}}]}, "published": "2026-03-24T09:16:39.763", "references": [{"source": "security@knime.com", "url": "https://www.knime.com/security/advisories#CVE-2026-4649"}], "sourceIdentifier": "security@knime.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "security@knime.com", "type": "Secondary"}]}

{"bugzilla": {"description": "Apache Artemis: KNIME Business Hub: Apache Artemis and KNIME Business Hub: Authentication bypass allows information disclosure and message injection.", "id": "2450641", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450641"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "status": "draft"}, "cwe": "CWE-306", "details": ["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."], "mitigation": {"lang": "en:us", "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."}, "name": "CVE-2026-4649", "package_state": [{"cpe": "cpe:/a:redhat:amq_broker:7", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat AMQ Broker 7"}, {"cpe": "cpe:/a:redhat:amq_clients:2023", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat AMQ Clients"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:optaplanner:::el6", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat build of OptaPlanner 8"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_bpms_platform:7", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat Process Automation 7"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Fix deferred", "package_name": "candlepin", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Fix deferred", "package_name": "satellite:el8/candlepin", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:red_hat_single_sign_on:7", "fix_state": "Fix deferred", "package_name": "artemis-server", "product_name": "Red Hat Single Sign-On 7"}], "public_date": "2026-03-24T08:15:16Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4649\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4649\nhttps://www.knime.com/security/advisories#CVE-2026-4649"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.17.0,1.17.4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.16.0,1.16.3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.0.0,1.15.2)"}}], "enrichment": {"confidence": 86.0, "confidence_source": "matching", "scores": [{"score": 86.0, "source": "matching"}]}, "original": {"product": "KNIME Business Hub", "source": "cna", "vendor": "KNIME"}, "product": "business_hub", "vendor": "knime"}], "analysis": {"en": {"generated_at": "2026-03-24T09:20:35.686049+00:00", "value": {"mitigation_remediation": ["Upgrade KNIME Business Hub to version 1.18.0, 1.17.4, or 1.16.3 to obtain the patched Apache Artemis.", "Until the update is applied, restrict workflow execution permissions and ensure that no user can register a federated mirror without proper authentication."], "summary": {"action": "Apply Patch", "impact": "Unauthorized Message Access"}, "threat_synthesis": {"affected_systems": "All current releases of KNIME Business Hub rely on Apache Artemis versions prior to 2.52.0, making them vulnerable. A patched Artemis is bundled with KNIME Business Hub 1.18.0, 1.17.4, and 1.16.3, which resolve the authentication bypass.", "description_and_impact": "The flaw is an authentication bypass in Apache Artemis that permits unauthorized users within KNIME Business Hub to read all broker messages and inject new messages. This gives attackers confidentiality exposure of internal communications and the ability to alter or skew system behavior by sending crafted messages. The vulnerability stems from a missing authentication check during federation registration, which is a form of inadequate authorization (CWE-306).", "risk_and_exploitability": "The CVSS score of 5.3 indicates moderate severity. While no EPSS score is provided and the vulnerability is not listed in the KEV catalog, the issue can be exploited by any user who has normal access to execute workflows in KNIME. The attack requires no external network access because Artemis is not exposed externally; therefore, exploitation is confined to the local system or the KNIME environment."}}}}, "created": "2026-03-25T11:48:51.508070+00:00", "updated": "2026-03-25T20:39:46.090448+00:00", "vendors": ["knime", "knime$PRODUCT$business_hub"]}