CVE-2020-9487
HIGH7.5EPSS 0.63%Missing Authentication for Critical Function in Apache NiFi
Published: 1/6/2022Modified: 9/15/2025
Description
In Apache NiFi 1.0.0 to 1.11.4, the NiFi download token (one-time password) mechanism used a fixed cache size and did not authenticate a request to create a download token, only when attempting to use the token to access the content. An unauthenticated user could repeatedly request download tokens, preventing legitimate users from requesting download tokens.
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 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |