CVE-2025-55000
Medium
Description
OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 0.1.0 through 2.3.1, OpenBao's TOTP secrets engine could accept valid codes multiple times rather than strictly-once. This was caused by unexpected normalization in the underlying TOTP library. To work around, ensure that all codes are first normalized before submitting to the OpenBao endpoint. TOTP code verification is a privileged action; only trusted systems should be verifying codes.
SeverityMedium
CVSS6.5
Exploit probability—
ProductOpenbao
PublishedAug 9, 2025
First seenAug 9, 2025
Weakness typeCWE-156CWE-156
How to fix
Update
- openbao openbao2.3.2 or later
- github.com/openbao/openbao2.3.2, 0.0.0-20250806193153-183891f8d535 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openbao openbao | v < 2.3.2 | 2.3.2 |
| github.com/openbao/openbaoGo | 0.1.0 ≤ v < 2.3.2, v < 0.0.0-20250806193153-183891f8d535, 0.1.0 ≤ v | 2.3.2, 0.0.0-20250806193153-183891f8d535 |
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