{"id":"CVE-2026-72584","aliases":["EUVD-2026-55222","GHSA-qm6j-5qpg-x2x4"],"status":"published","title":"fastschema - TOCTOU Race Condition Bypasses OTP Attempt Limit in Account Recovery","description":"A time-of-check/time-of-use (TOCTOU) race condition in fastschema through v0.15.1 allows an unauthenticated remote attacker to bypass the OTP attempt limit on the account recovery flow, enabling brute-force attacks on 6-digit OTP codes.","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0039,"percentile":0.33635,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2026-08-10T10:41:27Z","modified":"2026-10-28T02:30:44Z","products":[{"vendor":"fastschema","product":"fastschema"}],"references":[{"url":"https://github.com/fastschema/fastschema","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/fastschema/fastschema/blob/main/pkg/auth/local.go","tags":["technical-description","article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72584","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-qm6j-5qpg-x2x4"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72584.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-72584","title":"fastschema - TOCTOU Race Condition Bypasses OTP Attempt Limit in Account Recovery","description":"A time-of-check/time-of-use (TOCTOU) race condition in fastschema through v0.15.1 allows an unauthenticated remote attacker to bypass the OTP attempt limit on the account recovery flow, enabling brute-force attacks on 6-digit OTP codes.","status":"published","published":"2026-08-10T10:41:27.492Z","modified":"2026-08-10T13:14:19.784Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:19:52.016971Z"}],"euvd":[{"id":"EUVD-2026-55222","description":"A time-of-check/time-of-use (TOCTOU) race condition in fastschema through v0.15.1 allows an unauthenticated remote attacker to bypass the OTP attempt limit on the account recovery flow, enabling brute-force attacks on 6-digit OTP codes.","status":"published","published":"2026-08-10T10:41:27Z","modified":"2026-08-10T13:14:19Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T18:02:05.732685Z"}],"ghsa":[{"id":"GHSA-qm6j-5qpg-x2x4","title":"A time-of-check/time-of-use (TOCTOU) race condition in fastschema through v0.15.1 allows an...","description":"A time-of-check/time-of-use (TOCTOU) race condition in fastschema through v0.15.1 allows an unauthenticated remote attacker to bypass the OTP attempt limit on the account recovery flow, enabling brute-force attacks on 6-digit OTP codes.","status":"published","published":"2026-08-10T12:31:53Z","modified":"2026-08-10T12:32:01Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T15:10:13.54571Z"}],"nvd":[{"id":"CVE-2026-72584","description":"A time-of-check/time-of-use (TOCTOU) race condition in fastschema through v0.15.1 allows an unauthenticated remote attacker to bypass the OTP attempt limit on the account recovery flow, enabling brute-force attacks on 6-digit OTP codes.","status":"published","published":"2026-08-10T11:17:31.39Z","modified":"2026-10-24T15:10:00.19Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:12:35.743275Z"}],"osv":[{"id":"CVE-2026-72584","title":"fastschema - TOCTOU Race Condition Bypasses OTP Attempt Limit in Account Recovery","description":"A time-of-check/time-of-use (TOCTOU) race condition in fastschema through v0.15.1 allows an unauthenticated remote attacker to bypass the OTP attempt limit on the account recovery flow, enabling brute-force attacks on 6-digit OTP codes.","status":"published","published":"2026-08-10T10:41:27.492Z","modified":"2026-10-28T02:30:44.528502697Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T15:45:15.88521Z"}]}}