CVE-2021-44145
MEDIUMCVSS 6.5/10EPSS 1.70%
Last modified
CVE-2021-44145 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.. EPSS estimates a 1.70% chance of exploitation in the next 30 days.
Description
In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Nifi | >= 0.1.0, < 1.15.1 |
References
- http://www.openwall.com/lists/oss-security/2021/12/17/1Mailing List, Third Party Advisory
- https://nifi.apache.org/security.html#1.15.1-vulnerabilitiesVendor Advisory
- http://www.openwall.com/lists/oss-security/2021/12/17/1Mailing List, Third Party Advisory
- https://nifi.apache.org/security.html#1.15.1-vulnerabilitiesVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-44145?
In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.
How severe is CVE-2021-44145?
CVE-2021-44145 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.70% probability of exploitation in the next 30 days.
How do I fix CVE-2021-44145?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-44145?
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Scan your code nowSource: NVD / NIST