| Package | Affected versions | Patched versions |
|---|---|---|
| org.apache.nifi:nifi | ≥ 1.0.0, < 1.12.0-RC1 | 1.12.0-RC1 |
| nifi | ≥ 1.0.0, ≤ 1.11.4 |
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.
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