Incorrect authorization in Apache Nifi - CVE-2026-68979
Published: August 24, 2026
Vulnerability identifier: #VU144804
CSH Severity: Low
CVSS v4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-68979
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper access control in the Parameter Context update REST API when updating parameter values referenced by components. A remote user can modify a Parameter Context without authorization on referencing components to execute arbitrary code.
Exploitation requires deployments that use component-level authorization policies, and the impact is limited to stopped components. Code execution is possible only when a Parameter value contains executable scripting content and automatic component validation processes the updated value.
Affected software
Apache Nifi
How to mitigate CVE-2026-68979
Install security update from vendor's website.
Apache Nifi - update to 2.11.0