Apache 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.
BIT-nifi-2026-70469
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:BIT-nifi-2026-70469
nifi
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.12.0
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "2.11.0"
},
{
"fixed": "2.12.0"
}
]
}
],
"package": {
"name": "nifi",
"purl": "pkg:bitnami/nifi",
"ecosystem": "Bitnami"
},
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"database_specific": {
"source": "https://github.com/bitnami/vulndb/tree/main/data/nifi/BIT-nifi-2026-70469.json"
}
}
]- Related CVEs
- CVE-2026-70469
Source reference:
/aliases
Publisher severity
high
Source reference: /database_specific/severity
- Event
- #15219 · Revision 1
- Added to Heist Feed
- Publisher date