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CVE-2026-70469

Apache NiFi: Improper Handling of Case Sensitivity for Content-Encoding in HTTP Requests

cve-program · severity unknownCVSS unknownCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-70469

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-70469

Published

org.apache.nifi:nifi-jetty

https://repo.maven.apache.org/maven2

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Apache Software Foundation",
                    "product": "Apache NiFi",
                    "collectionURL": "https://repo.maven.apache.org/maven2",
                    "packageName": "org.apache.nifi:nifi-jetty",
                    "packageURL": "pkg:maven/org.apache.nifi/nifi-jetty",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "2.11.0",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON