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CVE-2026-68981: CWE-409 Improper Handling of Highly Compressed Data (Data Amplification) in Apache Software Foundation Apache NiFi

0
High
VulnerabilityCVE-2026-68981cvecve-2026-68981cwe-409
Published: 08/03/2026 (08/03/2026, 19:59:58 UTC)
Source: CVE Database V5
Vendor/Project: Apache Software Foundation
Product: Apache NiFi

Description

Apache NiFi 1.5.0 through 2.10.0 support gzip-encoded HTTP requests for the application REST API using a Jersey encoding filter. The framework enforced a configurable maximum request size on the compressed payload rather than the decompressed output, allowing a malicious client to send crafted requests that could consume excessive amounts of memory. Upgrading to Apache NiFi 2.11.0 is the recommended mitigation, which relocates response compression to Jetty Server and disables decompression of gzip-encoded HTTP requests.

CVSS v4.0

Score 8.8high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
Low
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
Scope
P
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/S:P/AU:Y/R:U/V:C/RE:M/U:Amber

Affected software

Affected versions
=1.5.0

Technical Details

Data Version
5.2
Assigner Short Name
apache
Date Reserved
2026-08-01T20:14:23.903Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a70f79ebf32cb7a34248238

Added to database: 08/03/2026, 20:18:38 UTC

Last updated: 08/03/2026, 20:18:38 UTC

Views: 1

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