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/.
                
            Metrics
Affected Vendors & Products
References
        History
                    Tue, 12 Aug 2025 20:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | Openbao Openbao openbao | |
| CPEs | cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:* | |
| Vendors & Products | Openbao Openbao openbao | 
Tue, 12 Aug 2025 12:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | Openbao Project Openbao Project openbao | |
| Vendors & Products | Openbao Project Openbao Project openbao | 
Mon, 11 Aug 2025 15:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | ssvc 
 | 
Sat, 09 Aug 2025 02:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| 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/. | |
| Title | OpenBao Login MFA Bypasses Rate Limiting and TOTP Token Reuse | |
| Weaknesses | CWE-307 | |
| References |  | |
| Metrics | cvssV3_1 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-08-09T02:01:43.985Z
Updated: 2025-08-11T14:47:04.206Z
Reserved: 2025-08-04T17:34:24.421Z
Link: CVE-2025-55003
 Vulnrichment
                        Vulnrichment
                    Updated: 2025-08-11T14:46:55.336Z
 NVD
                        NVD
                    Status : Analyzed
Published: 2025-08-09T03:15:47.030
Modified: 2025-08-12T20:39:40.253
Link: CVE-2025-55003
 Redhat
                        Redhat
                    No data.