Apache NiFi GetAsanaObject Processor has Remote Code Execution via Unsafe Deserialization

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

7.5 · CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:Y/R:U/V:C/RE:L/U:Green · score source

EPSS

• CVE-2025-66524: 0.59% estimated exploitation activity in the next 30 days; percentile 48.47 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

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.

Published by the source

19 Dec 2025, 12:31 UTC

Last modified by the source

19 Dec 2025, 21:45 UTC

Source last checked

26 Oct 2026, 16:43 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-v4p2-2w39-mhrj

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# Patch Next advisory brief: CVE-2025-66524

Advisory: Apache NiFi GetAsanaObject Processor has Remote Code Execution via Unsafe Deserialization
IDs: CVE-2025-66524, GHSA-v4p2-2w39-mhrj
Record: https://patchnext.com/advisories/cve-2025-66524 (revision 1, source checked 26 Oct 2026, 16:43 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.apache.nifi:nifi-asana-processors 2.7.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.apache.nifi:nifi-asana-processors: affected >= 1.20.0, < 2.7.0; fixed in 2.7.0

## Suggested inspection (read-only)
- Maven org.apache.nifi:nifi-asana-processors: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.apache.nifi:nifi-asana-processors.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-v4p2-2w39-mhrj (GitHub-reviewed advisory GHSA-v4p2-2w39-mhrj lists affected ranges: Maven org.apache.nifi:nifi-asana-processors >=1.20.0 <2.7.0)

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