CVSS 3.1
5.7 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:NCVE-2025-55003
Medium (5.7) in openbao openbao. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/openbao/openbao 0.0.0-20250807113757-8340a6918f6c, 2.3.2.
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/.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-31)
- CWE
- CWE-307
- Published
- Modified
- Record from
- the NVD, synced
Affected
- openbao:openbao
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-rxp7-9q75-vj3p | Go | github.com/openbao/openbao | >=0.1.0 <2.3.2 | 2.3.2 |
| GHSA-rxp7-9q75-vj3p | Go | github.com/openbao/openbao | <0.0.0-20250807113757-8340a6918f6c | 0.0.0-20250807113757-8340a6918f6c |
| GO-2025-3856 | Go | github.com/openbao/openbao | <0.0.0-20250807113757-8340a6918f6c >=0.1.0 | 0.0.0-20250807113757-8340a6918f6c |