{"cve":{"cve_id":"CVE-2026-86463","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":0.00159,"epss_percentile":0.04556,"epss_as_of":"2026-10-15","description":"Apache CXF's FIQL query parser has a vulnerability in how it searches for operators in query expressions. The search pattern can get stuck trying many combinations when it encounters a long string without an operator, causing the parser to consume excessive CPU time. An attacker can send a crafted query to make the server use up CPU resources, potentially slowing down or stopping other requests. The fix was to limit FIQL expressions to 4 KiB by default, preventing attackers from sending extremely long inputs while still allowing normal queries.\n\nUsers are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.","published_at":"2026-10-09T10:18:42.008000Z","last_modified_at":"2026-10-20T12:41:49.507000Z","cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","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-400"],"nvd_references":["https://lists.apache.org/thread.html/mv5qfmd27gkbvt3k6by9db5bolrsbgy1"],"vuln_status":"Analyzed","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":"2026-10-09T10:37:29.207764Z","updated_at":"2026-10-24T01:25:46.117302Z"},"effective_severity":"HIGH","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":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"apache","vendor_name":"apache","product_slug":"cxf","product_name":"CXF","version_start":null,"version_start_inclusive":null,"version_end":"3.6.13","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-cxf","product_name":"Apache CXF","version_start":"4.2.0","version_start_inclusive":true,"version_end":"4.2.4","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-cxf:4.2.0:4.2.4"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-cxf","product_name":"Apache CXF","version_start":"4.0.0","version_start_inclusive":true,"version_end":"4.1.9","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-cxf:4.0.0:4.1.9"},{"vendor_slug":"apache-software-foundation","vendor_name":"Apache Software Foundation","product_slug":"apache-cxf","product_name":"Apache CXF","version_start":"0","version_start_inclusive":true,"version_end":"3.6.13","version_end_inclusive":false,"cpe23_uri":"cve5:apache-software-foundation:apache-cxf:0:3.6.13"}],"exploit_refs":[],"news":[],"references":[{"url":"https://lists.apache.org/thread.html/mv5qfmd27gkbvt3k6by9db5bolrsbgy1","source_type":"MAILING_LIST","tags":["mailing-list"]}],"timeline":[{"type":"published","at":"2026-10-09T10:18:42.008000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-10-15T22:02:21.122801Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-10-15T22:02:21.122801Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-10-15T22:02:21.122801Z","label":"CVSS score revised","source":"cvelistv5"}]}