CVE-2025-55000
OpenBao TOTP Secrets Engine Code Reuse
Impact
### Impact 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. ### Patches OpenBao v2.3.2 will patch this issue. In patching, codes which were not normalized (strictly N numeric digits) will now be rejected. This is a potentially breaking change. ### Workarounds TOTP code verification is a privileged action; only trusted systems should be verifying codes. Ensure that all codes are first normalized before submitting to the OpenBao endpoint. ### References This issue was disclosed to HashiCorp and is the OpenBao equivalent of the following tickets: - https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036 - https://nvd.nist.gov/vuln/detail/CVE-2025-6014
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/openbao/openbao | >= 0.1.0, < 2.3.2 | 2.3.2 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Openbao | Openbao | before 2.3.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036
- https://github.com/openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1
- https://github.com/openbao/openbao/security/advisories/GHSA-f7c3-mhj2-9pvg
- https://github.com/advisories/GHSA-f7c3-mhj2-9pvg
- https://nvd.nist.gov/vuln/detail/CVE-2025-6014
- https://nvd.nist.gov/vuln/detail/CVE-2025-55000