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CVE-2026-100678

stoatchat before 0.15.5 MFA Brute Force via Insufficient Rate Limiting PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
stoatchat / stoatchataffected 0 before 0.15.5; unaffected 0.15.5

CWE

CWE-307

References

ADP enrichment

CISA-ADP

No English description supplied.