CVE-2026-81866 (GCVE-0-2026-81866)

Vulnerability from cvelistv5 – Published: 2026-09-16 19:38 – Updated: 2026-09-17 12:27
VLAI
Title
Apache NiFi: Missing Authorization for Assets and Secrets Referenced by Connector Configuration
Summary
Apache NiFi 2.9.0 through 2.11.0 provide Connector configuration update and verification REST API methods that do not enforce authorization checking on Assets and Secrets referenced in proposed configuration. Updating or verifying a Connector configuration step can apply Asset and Secret references, but framework authorization was limited to write privileges on the Connector itself. As a result of the missing authorization, an authenticated user authorized to modify a Connector, but not authorized to read a referenced Parameter Provider, could apply Secret values backed by that Parameter Provider. The same methods also accepted Asset identifiers without verifying that the Asset belonged to the Connector being configured. Apache NiFi installations that do not implement different levels of authorization across Connectors and Parameter Providers are not subject to this vulnerability, because the framework enforces write permissions on the Connector as the security boundary. Upgrading to Apache NiFi 2.12.0 is the recommended mitigation, which authorizes read access to referenced Parameter Providers and verifies Connector ownership of referenced Assets during configuration update and verification.
Severity
0.5 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:U/S:N/AU:Y/R:U/V:C/RE:L/U:Clear
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 12:26 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache NiFi Affected: 2.9.0 , ≤ 2.11.0 (semver)
guessed Create a notification for this product.
Credits
h1ei1 Arpit Jain
Show details on NVD website
To clipboard 

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