Vulnerability Description
Apache NiFi 1.20.0 through 2.6.0 include the GetAsanaObject Processor, which requires integration with a configurable Distribute Map Cache Client Service for storing and retrieving state information. The GetAsanaObject Processor used generic Java Object serialization and deserialization without filtering. Unfiltered Java object deserialization does not provide protection against crafted state information stored in the cache server configured for GetAsanaObject. Exploitation requires an Apache NiFi system running with the GetAsanaObject Processor, and direct access to the configured cache server. Upgrading to Apache NiFi 2.7.0 is the recommended mitigation, which replaces Java Object serialization with JSON serialization. Removing the GetAsanaObject Processor located in the nifi-asana-processors-nar bundle also prevents exploitation.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Nifi | >= 1.20.0, < 2.7.0 |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/k9h004ydjg7opdvxr0nfywtzf33z60d7Mailing ListIssue TrackingVendor Advisory
- http://www.openwall.com/lists/oss-security/2025/12/18/2Mailing List
FAQ
What is CVE-2025-66524?
CVE-2025-66524 is a vulnerability with a CVSS score of 8.8 (HIGH). Apache NiFi 1.20.0 through 2.6.0 include the GetAsanaObject Processor, which requires integration with a configurable Distribute Map Cache Client Service for storing and retrieving state information. ...
How severe is CVE-2025-66524?
CVE-2025-66524 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-66524?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Nifi.