{"api_version":"1","generated_at":"2026-04-22T22:50:40+00:00","cve":"CVE-2021-21640","urls":{"html":"https://cve.report/CVE-2021-21640","api":"https://cve.report/api/cve/CVE-2021-21640.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-21640","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-21640"},"summary":{"title":"CVE-2021-21640","description":"Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not properly check that a newly created view has an allowed name, allowing attackers with View/Create permission to create views with invalid or already-used names.","state":"PUBLIC","assigner":"jenkinsci-cert@googlegroups.com","published_at":"2021-04-07 14:15:00","updated_at":"2023-10-25 18:16:00"},"problem_types":[],"metrics":[],"references":[{"url":"https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1871","name":"https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1871","refsource":"CONFIRM","tags":[],"title":"Jenkins Security Advisory 2021-04-07","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"http://www.openwall.com/lists/oss-security/2021/04/07/2","name":"[oss-security] 20210407 Multiple vulnerabilities in Jenkins and Jenkins plugins","refsource":"MLIST","tags":[],"title":"oss-security - Multiple vulnerabilities in Jenkins and Jenkins plugins","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21640","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21640","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"21640","vulnerable":"1","versionEndIncluding":"2.277.1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"jenkins","cpe5":"jenkins","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"21640","vulnerable":"1","versionEndIncluding":"2.286","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"jenkins","cpe5":"jenkins","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"-","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-21640","qid":"239359","title":"Red Hat Update for OpenShift Container Platform 4.7.11 (RHSA-2021:1551)"},{"cve":"CVE-2021-21640","qid":"239525","title":"Red Hat Update for OpenShift Container Platform 4.8.2 (RHSA-2021:2437)"},{"cve":"CVE-2021-21640","qid":"501588","title":"Alpine Linux Security Update for jenkins"},{"cve":"CVE-2021-21640","qid":"730045","title":"Jenkins Multiple Security Vulnerabilities(Jenkins Security Advisory 2021-04-07)"},{"cve":"CVE-2021-21640","qid":"770059","title":"Red Hat OpenShift Container Platform 4.7.11 Security and Bug Fix Update (RHSA-2021:1551)"},{"cve":"CVE-2021-21640","qid":"770074","title":"Red Hat OpenShift Container Platform 4.8 Security Update (RHSA-2021:2437)"},{"cve":"CVE-2021-21640","qid":"770111","title":"Red Hat OpenShift Container Platform 4.8 Security Update (RHSA-2021-2437)"},{"cve":"CVE-2021-21640","qid":"770112","title":"Red Hat OpenShift Container Platform 4.7 Security Update (RHSA-2021-1551)"}]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2021-21640","ASSIGNER":"jenkinsci-cert@googlegroups.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not properly check that a newly created view has an allowed name, allowing attackers with View/Create permission to create views with invalid or already-used names."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Jenkins project","product":{"product_data":[{"product_name":"Jenkins","version":{"version_data":[{"version_affected":"<=","version_name":"unspecified","version_value":"2.286"}]}}]}}]}},"references":{"reference_data":[{"url":"https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1871","refsource":"MISC","name":"https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1871"},{"url":"http://www.openwall.com/lists/oss-security/2021/04/07/2","refsource":"MISC","name":"http://www.openwall.com/lists/oss-security/2021/04/07/2"}]}},"nvd":{"publishedDate":"2021-04-07 14:15:00","lastModifiedDate":"2023-10-25 18:16:00","problem_types":[],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":1.4},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":4},"severity":"MEDIUM","exploitabilityScore":8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*","versionEndIncluding":"2.277.1","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*","versionEndIncluding":"2.286","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"21640","Ordinal":"196328","Title":"CVE-2021-21640","CVE":"CVE-2021-21640","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"21640","Ordinal":"1","NoteData":"Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not properly check that a newly created view has an allowed name, allowing attackers with View/Create permission to create views with invalid or already-used names.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"21640","Ordinal":"2","NoteData":"2021-04-07","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"21640","Ordinal":"3","NoteData":"2021-04-07","Type":"Other","Title":"Modified"}]}}}