{"cve":{"cve_id":"CVE-2026-70469","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":null,"epss_percentile":null,"epss_as_of":null,"description":"Apache NiFi 2.11.0 disabled support for gzip-encoded HTTP requests for the application REST API and rejected requests that included the standard Content-Encoding header indicating gzip encoding. The framework enforcement filter did not check multiple instances of the Content-Encoding header and did not reject non-standard identifiers for gzip encoding, allowing a malicious client to send crafted requests that could consume excessive amounts of memory. Upgrading to Apache NiFi 2.12.0 is the recommended mitigation, which disables decompression of gzip-encoded HTTP requests regardless of header number or encoding identifiers.","published_at":"2026-09-16T19:38:42.341000Z","last_modified_at":"2026-09-17T20:18:00.007000Z","cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","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-409"],"nvd_references":["https://lists.apache.org/thread/mjpv7r4djgn7fdvhnpjwgr2rcto47mx0"],"vuln_status":"Undergoing Analysis","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":"2026-09-16T21:03:42.088887Z","updated_at":"2026-09-18T12:32:27.349964Z"},"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":"H","value_label":"High"},{"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-nifi","product_name":"Apache NiFi","version_start":"2.11.0","version_start_inclusive":true,"version_end":"2.11.0","version_end_inclusive":true,"cpe23_uri":"cve5:apache-software-foundation:apache-nifi:2.11.0:2.11.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://lists.apache.org/thread/mjpv7r4djgn7fdvhnpjwgr2rcto47mx0","source_type":"MAILING_LIST","tags":["mailing-list"]}],"timeline":[{"type":"published","at":"2026-09-16T19:38:42.341000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-09-17T21:03:42.089829Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-09-17T21:03:42.089829Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-09-17T21:03:42.089829Z","label":"CVSS score revised","source":"cvelistv5"}]}