CVE-2025-54999
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
09/08/2025
Last modified:
13/11/2025
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, when using OpenBao's userpass auth method, user enumeration was possible due to timing difference between non-existent users and users with stored credentials. This is independent of whether the supplied credentials were valid for the given user. This issue was fixed in version 2.3.2. To work around this issue, users may use another auth method or apply rate limiting quotas to limit the number of requests in a period of time: https://openbao.org/api-docs/system/rate-limit-quotas/.
Impact
Base Score 3.x
3.70
Severity 3.x
LOW
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:* | 2.3.2 (excluding) |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034
- https://discuss.hashicorp.com/t/hcsec-2025-21-vault-user-enumeration-in-userpass-auth-method/76095
- https://github.com/openbao/openbao/commit/4d9b5d3d6486ab9fbd5b644173fa0097015d6626
- https://github.com/openbao/openbao/security/advisories/GHSA-hh28-h22f-8357