- 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.
- Source
- security@apache.org
- NVD status
- Analyzed
- Products
- nifi
CVSS 4.0
- Type
- Secondary
- Base score
- 7.5
- Impact score
- -
- Exploitability score
- -
- Vector string
- 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
- Severity
- HIGH
CVSS 3.1
- Type
- Primary
- Base score
- 8.8
- Impact score
- 5.9
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
- security@apache.org
- CWE-502
- Hype score
- Not currently trending
CVE-2025-66524: Apache NiFi: Deserialization of Untrusted Data in GetAsanaObject Processor https://t.co/8VDn3CJkTX Generic Java Object serialization and deserialization without filtering. Exploitation requires direct access to the configured cache server.
@oss_security
26 Dec 2025
540 Impressions
0 Retweets
3 Likes
0 Bookmarks
0 Replies
0 Quotes
⚠️ HIGH severity alert: Apache NiFi 1.20.0–2.6.0 hit by deserialization vuln (CVE-2025-66524). Attackers with cache server access could execute code. Upgrade to 2.7.0 or remove vulnerable processor! https://t.co/fqwrrJLJza... https://t.co/TRSqU4bXjf
@offseq
19 Dec 2025
34 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
discovered CVE-2025-66524 by my 👀 https://t.co/ghrXubhx0k
@07finder
19 Dec 2025
2567 Impressions
1 Retweet
35 Likes
9 Bookmarks
2 Replies
0 Quotes
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{
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