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/.
CVSS
No CVSS.
References
Configurations
History
12 Aug 2025, 20:39
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:* | |
| References | () https://github.com/openbao/openbao/commit/8340a6918f6c41d8f75b6c3845c376d9dc32ed19 - Patch | |
| References | () https://github.com/openbao/openbao/security/advisories/GHSA-rxp7-9q75-vj3p - Vendor Advisory | |
| References | () https://discuss.hashicorp.com/t/hcsec-2025-19-vault-login-mfa-bypass-of-rate-limiting-and-totp-token-reuse/76038 - Not Applicable | |
| First Time |
Openbao
Openbao openbao |
09 Aug 2025, 03:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-08-09 03:15
Updated : 2025-08-12 20:39
NVD link : CVE-2025-55003
Mitre link : CVE-2025-55003
JSON object : View
Products Affected
openbao
- openbao
CWE
CWE-307
Improper Restriction of Excessive Authentication Attempts