CVE-2025-55003 Information

Aug 10, 2025 cve

Description

OpenBao exists to provide a software solution to manage store and distribute sensitive data including secrets certificates and keys. In versions 2.3.1 and below OpenBao’s Login Multi-Factor Authentication (MFA) system allows enforcing MFA using Time-based One Time Password (TOTP). Due to normalization applied by the underlying TOTP library codes were accepted which could contain whitespace; this whitespace could bypass internal rate limiting of the MFA method and allow reuse of existing MFA codes. This issue was fixed in version 2.3.2. To work around this use of rate-limiting quotas can limit an attacker’s ability to exploit this: https://openbao.org/api-docs/system/rate-limit-quotas/.

Reference

https://discuss.hashicorp.com/t/hcsec-2025-19-vault-login-mfa-bypass-of-rate-limiting-and-totp-token-reuse/76038 https://github.com/openbao/openbao/commit/8340a6918f6c41d8f75b6c3845c376d9dc32ed19 https://github.com/openbao/openbao/security/advisories/GHSA-rxp7-9q75-vj3p

CNNVD-202508-810 (Published: 2025-08-09)

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