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.
Metrics
Affected Vendors & Products
References
History
Mon, 21 Sep 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:apache:nifi:2.11.0:*:*:*:*:*:*:* |
Fri, 18 Sep 2026 04:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Apache
Apache nifi |
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| Vendors & Products |
Apache
Apache nifi |
Thu, 17 Sep 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
cvssV3_1
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Wed, 16 Sep 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
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| References |
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Wed, 16 Sep 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Apache NiFi: Improper Handling of Case Sensitivity for Content-Encoding in HTTP Requests | |
| Weaknesses | CWE-409 | |
| References |
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Status: PUBLISHED
Assigner: apache
Published: 2026-09-16T19:38:42.341Z
Updated: 2026-09-17T19:38:26.785Z
Reserved: 2026-08-04T15:09:34.902Z
Link: CVE-2026-70469
Updated: 2026-09-17T19:38:23.503Z
Status : Analyzed
Published: 2026-09-16T20:17:26.877
Modified: 2026-09-21T13:42:42.460
Link: CVE-2026-70469
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