Resource exhaustion in Apache Nifi - CVE-2026-68981
Published: August 24, 2026
Vulnerability identifier: #VU144807
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-68981
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in the Jersey encoding filter for the application REST API when processing gzip-encoded HTTP requests. A remote attacker can send a specially crafted compressed request to cause a denial of service.
The maximum request size is enforced on the compressed payload rather than the decompressed output.
Affected software
Apache Nifi
How to mitigate CVE-2026-68981
Install security update from vendor's website.
Apache Nifi - update to 2.11.0