{"id":"CVE-2022-21659","aliases":["GHSA-wfjw-w6pv-8p7f","PYSEC-2022-24"],"title":"Observable Response Discrepancy in Flask-AppBuilder","summary":"Observable Response Discrepancy in Flask-AppBuilder","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","vendor":"flask-appbuilder","product":"flask-appbuilder","ecosystem":"pip","affected":["flask-appbuilder < 3.4.4"],"patched":["flask-appbuilder 3.4.4"],"published":"2022-02-01","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:49:12.893858485Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-wfjw-w6pv-8p7f","references":[{"url":"https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-wfjw-w6pv-8p7f"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21659"},{"url":"https://github.com/dpgaspar/Flask-AppBuilder/pull/1775"},{"url":"https://github.com/dpgaspar/Flask-AppBuilder/commit/e2b744c258ff62ece9d5ac7172c3b4644ff4c2fe"},{"url":"https://github.com/dpgaspar/Flask-AppBuilder"},{"url":"https://github.com/dpgaspar/Flask-AppBuilder/commits/v3.4.4"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/flask-appbuilder/PYSEC-2022-24.yaml"}],"tags":["osv","pip"],"epss":0.00953,"epssPercentile":0.59817,"ingestedAt":"2026-09-12T03:13:01.735Z","slug":"CVE-2022-21659","body":"## Overview\n\n### Impact\nUser enumeration in database authentication in Flask-AppBuilder  < 3.4.4. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in.\n\n### Patches\nUpgrade to 3.4.4\n\n### Workarounds\n\n### References\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [example link to repo](http://example.com)\n* Email us at [example email address](mailto:example@example.com)\n\n## Affected packages\n\n- `flask-appbuilder < 3.4.4`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `flask-appbuilder 3.4.4`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}