CVE-2026-100678 (GCVE-0-2026-100678)
Vulnerability from cvelistv5
Published
2026-09-26 13:23
Modified
2026-09-30 15:00
Severity ?
8.3 (High) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Summary
stoatchat before 0.15.5 fails to enforce account-level attempt limits on MFA login challenges, allowing attackers who know a password to guess TOTP codes with only IP-based rate limiting. Attackers can reuse MFA challenge tickets across multiple failed attempts and distribute guesses across IP addresses to bypass rate limiting and gain account access.
References
Impacted products
Vendor Product Version
stoatchat stoatchat Version: 0   ≤
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