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Vulnerability record · CVE-2026-72584 · published 10 August 2026

CVE-2026-72584: TOCTOU race condition vulnerability

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.

7.4 CVSS 3.1 High EPSS 0.39% · top 69.5% CWE-367 · TOCTOU race condition Deferred
7.4CVSS 3.1 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
28 Aug 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References

LinkTags
https://github.com/fastschema/fastschema
https://github.com/fastschema/fastschema/blob/main/pkg/auth/local.go

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-72584), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.