{"id":"CVE-2024-21671","aliases":["GHSA-45gq-q4xh-cp53","PYSEC-2024-31","PYSEC-2026-2008"],"url":"https://o3.security/vulnerability/CVE-2024-21671","summary":"vantage6 username timing attack","details":"The vantage6 technology enables to manage and deploy privacy enhancing technologies like Federated Learning (FL) and Multi-Party Computation (MPC).  It is possible to find out usernames from the response time of login requests. This could aid attackers in credential attacks.  Version 4.2.0 patches this vulnerability.","published":"2024-01-30T15:43:06.789Z","modified":"2026-08-08T03:48:01.463362986Z","cvss":{"score":3.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"vantage6-server","fixedVersion":"4.2.0"}],"fix":{"url":"https://github.com/vantage6/vantage6/commit/389f416c445da4f2438c72f34c3b1084485c4e30","label":"vantage6/vantage6@389f416"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21671.json"},{"type":"ADVISORY","url":"https://github.com/vantage6/vantage6/security/advisories/GHSA-45gq-q4xh-cp53"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-21671"},{"type":"FIX","url":"https://github.com/vantage6/vantage6/commit/389f416c445da4f2438c72f34c3b1084485c4e30"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:48:01.463362986Z"}}