pache 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.
| Link | Resource |
|---|---|
| https://lists.apache.org/thread/k9h004ydjg7opdvxr0nfywtzf33z60d7 | Mailing List Issue Tracking Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2025/12/18/2 | Mailing List |
Configuration 1 (hide)
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08 Jan 2026, 14:52
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Apache
Apache nifi |
|
| CPE | cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:* cpe:2.3:a:apache:nifi:2.7.0:rc2:*:*:*:*:*:* cpe:2.3:a:apache:nifi:2.7.0:rc1:*:*:*:*:*:* |
|
| References | () https://lists.apache.org/thread/k9h004ydjg7opdvxr0nfywtzf33z60d7 - Mailing List, Issue Tracking, Vendor Advisory | |
| References | () http://www.openwall.com/lists/oss-security/2025/12/18/2 - Mailing List | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.8 |
19 Dec 2025, 18:00
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Published : 2025-12-19 10:15
Updated : 2026-01-08 14:52
NVD link : CVE-2025-66524
Mitre link : CVE-2025-66524
CVE.ORG link : CVE-2025-66524
JSON object : View
Deserialization of Untrusted Data