What’s Vulnerable › Vulnerabilities
CVE-2020-13940
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-10-01 · updated 2026-06-17
- Weakness: CWE-611
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 products
- Apache Software Foundation Apache NiFi: from 1.0.0 through 1.11.4
References
Get alerted when CVE-2020-13940 or the next vulnerability affects your stack