CVE-2025-6015: Hashicorp Vault has Login MFA Rate Limit Bypass Vulnerability

August 1, 2025

Vault and Vault Enterprise’s (“Vault”) login MFA rate limits could be bypassed and TOTP tokens could be reused. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.

References

discuss.hashicorp.com/t/hcsec-2025-19-vault-login-mfa-bypass-of-rate-limiting-and-totp-token-reuse/76038
github.com/advisories/GHSA-v6r4-35f9-9rpw
github.com/hashicorp/vault
nvd.nist.gov/vuln/detail/CVE-2025-6015

Code Behaviors & Features

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