{"affected":[{"package":{"ecosystem":"Bitnami","name":"nifi","purl":"pkg:bitnami/nifi"},"ranges":[{"events":[{"introduced":"2.11.0"},{"fixed":"2.12.0"}],"type":"SEMVER"}],"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"}]}],"aliases":["CVE-2026-70469"],"database_specific":{"cpes":["cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*"],"severity":"High"},"details":"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.","id":"BIT-nifi-2026-70469","modified":"2026-09-22T09:11:41.425Z","published":"2026-09-22T08:50:56.153Z","references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2026/09/16/7"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/mjpv7r4djgn7fdvhnpjwgr2rcto47mx0"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70469"}],"schema_version":"1.6.2","summary":"Apache NiFi: Improper Handling of Case Sensitivity for Content-Encoding in HTTP Requests"}