{"id":"BIT-nifi-2020-9487","details":"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.","aliases":["CVE-2020-9487","GHSA-3pp3-77j6-8ph6"],"modified":"2026-09-08T08:47:44.484385931Z","published":"2025-09-12T11:46:44.344Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://nifi.apache.org/security#CVE-2020-9487"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9487"}],"affected":[{"package":{"name":"nifi","ecosystem":"Bitnami","purl":"pkg:bitnami/nifi"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.0.0"},{"last_affected":"1.11.4"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/nifi/BIT-nifi-2020-9487.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.9.0"}