Apache NiFi up to 2.6.0 GetAsanaObject Processor deserialization

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apache NiFi up to 2.6.0. This impacts an unknown function of the component GetAsanaObject Processor. The manipulation leads to deserialization. This vulnerability is documented as CVE-2025-66524. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apache NiFi up to 2.6.0. This issue affects some unknown processing of the component GetAsanaObject Processor. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at lists.apache.org. The identification of this vulnerability is CVE-2025-66524. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/09/2026).

Upgrading to version 2.7.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-204524) and CERT Bund (WID-SEC-2025-2892). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Apache Nifi

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: NiFi 2.7.0

Timelineinfo

12/18/2025 Advisory disclosed
12/18/2025 +0 days VulDB entry created
01/09/2026 +22 days VulDB entry last update

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Confirmed

CVE: CVE-2025-66524 (🔒)
GCVE (CVE): GCVE-0-2025-66524
GCVE (VulDB): GCVE-100-337511
EUVD: 🔒
CERT Bund: WID-SEC-2025-2892 - Apache Nifi: Schwachstelle ermöglicht Codeausführung

Entryinfo

Created: 12/18/2025 22:53
Updated: 01/09/2026 10:24
Changes: 12/18/2025 22:53 (51), 12/19/2025 16:14 (1), 12/20/2025 02:24 (7), 12/20/2025 21:28 (18), 01/09/2026 10:24 (11)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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