CVE-2025-66524 json
Apache NiFi: Deserialization of Untrusted Data in GetAsanaObject Processor
published 2025-12-19 10 mo ago modified 2026-06-17 4 mo ago also BIT-nifi-2025-66524 , EUVD-2025-204524 , GHSA-v4p2-2w39-mhrj
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.apache.nifi:nifi-asana-processors 2.7.0
- bitnami nifi 2.7.0
- org.apache.nifi nifi-asana-processors 2.7.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 10 mo ago
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 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 |
| CNA | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:C/RE:L/U:Green |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.nifi:nifi-asana-processors | >=1.20.0, <2.7.0 |
2.7.0 |
| bitnami | nifi | >=1.20.0, <2.7.0 |
2.7.0 |
Affected products
- Apache Software Foundation Apache NiFi
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/apache/nifi/commit/1c081c15544b8459d69daaae2056f0f433cafce6
web
-
lists.apache.org
/thread/k9h004ydjg7opdvxr0nfywtzf33z60d7
vendor-advisory, web, issue-tracking, mailing-list
-
openwall.com
/lists/oss-security/2025/12/18/2
web, mailing-list
-
nvd.nist.gov
/vuln/detail/CVE-2025-66524
advisory, web
-
github.com
/apache/nifi
package
Sources
- CVE List CVE-2025-66524
- GitHub Advisory GHSA-v4p2-2w39-mhrj
- NVD CVE-2025-66524
- OSV BIT-nifi-2025-66524
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.