{"id":"BIT-nifi-2026-70469","summary":"Apache NiFi: Improper Handling of Case Sensitivity for Content-Encoding in HTTP Requests","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.","aliases":["CVE-2026-70469"],"modified":"2026-09-22T09:15:02.886326972Z","published":"2026-09-22T08:50:56.153Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*"]},"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"}],"affected":[{"package":{"name":"nifi","ecosystem":"Bitnami","purl":"pkg:bitnami/nifi"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.11.0"},{"fixed":"2.12.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/nifi/BIT-nifi-2026-70469.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}],"schema_version":"1.9.0"}