CVE-2026-84647

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{"affected": [{"affectedData": [{"defaultStatus": "affected", "product": "Jenkins", "vendor": "Jenkins Project", "versions": [{"lessThan": "*", "status": "unaffected", "version": "2.580", "versionType": "maven"}, {"lessThan": "2.568.*", "status": "unaffected", "version": "2.568.3", "versionType": "maven"}]}], "source": "jenkinsci-cert@googlegroups.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing attackers with Overall/Read permission to instantiate types related to configuration for which that field type was not intended."}], "id": "CVE-2026-84647", "lastModified": "2026-09-03T17:13:16.490", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-84647", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-02T17:40:10.896803Z", "version": "2.0.3"}}]}, "published": "2026-09-02T16:17:29.437", "references": [{"source": "jenkinsci-cert@googlegroups.com", "url": "https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3915"}], "sourceIdentifier": "jenkinsci-cert@googlegroups.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "Stapler: Jenkins: Stapler: Unintended configuration object instantiation via form data binding", "id": "2527601", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2527601"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N", "status": "draft"}, "cwe": "CWE-915", "details": ["In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing attackers with Overall/Read permission to instantiate types related to configuration for which that field type was not intended.", "A flaw was found in Stapler, a web framework included in Jenkins. This vulnerability allows an attacker with 'Overall/Read' permission to instantiate objects related to configuration through form data binding. The system does not properly restrict the types of objects that can be created, enabling the attacker to instantiate types for which the field was not intended. This could lead to unauthorized manipulation of system configurations."], "name": "CVE-2026-84647", "package_state": [{"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "jenkins", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "ocp-tools-4/jenkins-rhel8", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "ocp-tools-4/jenkins-rhel9", "product_name": "OpenShift Developer Tools and Services"}], "public_date": "2026-09-02T15:40:40Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-84647\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-84647\nhttps://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3915"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[2.580,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[2.568.3,2.569.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Jenkins", "source": "cna", "vendor": "Jenkins Project"}, "product": "jenkins", "vendor": "jenkins_project"}], "created": "2026-09-03T12:00:04.959221+00:00", "updated": "2026-09-04T02:00:05.665776+00:00", "vendors": ["jenkins_project", "jenkins_project$PRODUCT$jenkins"]}