Apache NiFi: Improper Handling of Case Sensitivity for Content-Encoding in HTTP Requests
cve-program · CVE-2026-70469
PublishedApache 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.
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cve-program · CVE-2026-70469
PublishedApache NiFi: Improper Handling of Case Sensitivity for Content-Encoding in HTTP Requests
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.
- Source published
- 16 Sep 2026 19:38:42 UTC
- Source modified
- 17 Sep 2026 19:38:26 UTC
- Saved here
- 23 Oct 2026 15:48:27 UTC
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