CVE-2025-55000
MEDIUM6.5EPSS 0.06%OpenBao TOTP Secrets Engine Code Reuse
Description
### 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 (2)
- Go/github.com/openbao/openbao>= 0.1.0, < 2.3.2
- Go/github.com/openbao/openbaofrom 0, < 0.0.0-20250806193153-183891f8d535, >= 0.1.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-55000
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-6014
- PATCHhttps://github.com/openbao/openbao
- WEBhttps://discuss.hashicorp.com/t/hcsec-2025-17-vault-totp-secrets-engine-code-reuse/76036
- WEBhttps://github.com/openbao/openbao/commit/183891f8d535d5b6eb3d79fda8200cade6de99e1
- WEBhttps://github.com/openbao/openbao/security/advisories/GHSA-f7c3-mhj2-9pvg