CVE-2026-70469

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Source
https://cve.org/CVERecord?id=CVE-2026-70469
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70469.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-70469
Aliases
Downstream
Published
2026-09-16T19:38:42Z
Modified
2026-09-23T03:46:40Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
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.

Database specific 
{
    "cna_assigner":  "apache",
    "cwe_ids":  [
        "CWE-409"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70469.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "2.11.0"
                },
                {
                    "last_affected":  "2.11.0"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/apache/nifi

Affected ranges

Type
GIT
Repo
https://github.com/apache/nifi
Events
Introduced
e296b299805a7e3ff4c99916b79cfba16c5e4870
Last Affected
e296b299805a7e3ff4c99916b79cfba16c5e4870
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:apache:nifi:2.11.0:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "2.11.0"
        },
        {
            "last_affected":  "2.11.0"
        }
    ],
    "source":  "CPE_STRING"
}

Affected versions

2.*
2.11.0
nifi-2.*
nifi-2.11.0-RC1
rel/nifi-2.*
rel/nifi-2.11.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70469.json"