CVE-2020-13940
MEDIUM5.5EPSS 0.96%Improper Restriction of XML External Entity Reference in Apache NiFi
Published: 1/6/2022Modified: 9/15/2025
Description
In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).
Affected packages (2)
- Bitnami/nifi>= 1.0.0, <= 1.11.4
- Maven/org.apache.nifi:nifi>= 1.0.0, < 1.12.0-RC1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |