CVE-2026-81866

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.

CVSS

No CVSS.

References

Link	Resource
https://lists.apache.org/thread/rv49gwf4yb00ykv0zzfd509boxflolsf
http://www.openwall.com/lists/oss-security/2026/09/16/8

Configurations

No configuration.

History

16 Sep 2026, 21:17

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/09/16/8 -

16 Sep 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-16 20:17

Updated : 2026-09-17 13:16

NVD link : CVE-2026-81866

Mitre link : CVE-2026-81866

CVE.ORG link : CVE-2026-81866

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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