{"cve":{"cve_id":"CVE-2026-33227","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00419,"epss_percentile":0.33403,"epss_as_of":"2026-06-23","description":"Improper validation and restriction of a classpath path name vulnerability in \n\n Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ Web, Apache ActiveMQ.\n\n\n\nIn two instances (when creating a Stomp consumer and also browsing messages in the Web console) an authenticated user provided \"key\" value could be constructed to traverse the classpath due to path concatenation. As a result, the application is exposed to a classpath path resource loading vulnerability that could potentially be chained together with another attack to lead to exploit.\n\n\n\n\n\nThis issue affects Apache ActiveMQ Client: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ Broker: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ All: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ Web: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ: before 5.19.3, from 6.0.0 before 6.2.2.\n\nUsers are recommended to upgrade to version 5.19.4 or 6.2.3, which fixes the issue. Note: 5.19.3 and 6.2.2 also fix this issue, but that is limited to non-Windows environments due to a path separator resolution bug fixed in 5.19.4 and 6.2.3.","published_at":"2026-04-07T07:50:58.897000Z","last_modified_at":null,"cvss_v3_score":4.3,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-22"],"nvd_references":["https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:29:53.161929Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"L","value_label":"Low"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq","product_name":"Apache ActiveMQ","version_start":"0","version_start_inclusive":true,"version_end":"5.19.3","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq:0:5.19.3"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq","product_name":"Apache ActiveMQ","version_start":"6.0.0","version_start_inclusive":true,"version_end":"6.2.2","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq:6.0.0:6.2.2"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq-all","product_name":"Apache ActiveMQ All","version_start":"6.0.0","version_start_inclusive":true,"version_end":"6.2.2","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq-all:6.0.0:6.2.2"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq-all","product_name":"Apache ActiveMQ All","version_start":"0","version_start_inclusive":true,"version_end":"5.19.3","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq-all:0:5.19.3"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq-broker","product_name":"Apache ActiveMQ Broker","version_start":"0","version_start_inclusive":true,"version_end":"5.19.3","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq-broker:0:5.19.3"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq-broker","product_name":"Apache ActiveMQ Broker","version_start":"6.0.0","version_start_inclusive":true,"version_end":"6.2.2","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq-broker:6.0.0:6.2.2"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq-client","product_name":"Apache ActiveMQ Client","version_start":"6.0.0","version_start_inclusive":true,"version_end":"6.2.2","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq-client:6.0.0:6.2.2"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq-client","product_name":"Apache ActiveMQ Client","version_start":"0","version_start_inclusive":true,"version_end":"5.19.3","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq-client:0:5.19.3"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq-web","product_name":"Apache ActiveMQ Web","version_start":"0","version_start_inclusive":true,"version_end":"5.19.3","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq-web:0:5.19.3"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-activemq-web","product_name":"Apache ActiveMQ Web","version_start":"6.0.0","version_start_inclusive":true,"version_end":"6.2.2","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-activemq-web:6.0.0:6.2.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-04-07T07:50:58.897000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:53:15.351162Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:53:15.351162Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:53:15.351162Z","label":"CVSS score revised","source":"cvelistv5"}]}