openbao/openbao · Security
OpenBao Userpass and LDAP User Lockout Bypass
- GHSA ID
- GHSA-j3xv-7fxp-gfhx
- CVE ID
- CVE-2025-54998
- Severity
- medium
- Published
- Updated
- CVSS
- 5.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS v3
- 5.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Description
Impact
Attackers could bypass the automatic user lockout mechanisms in the OpenBao Userpass or LDAP auth systems. This was caused by different aliasing between pre-flight and full login request user entity alias attributions.
Patches
OpenBao v2.3.2 will patch this issue.
Workarounds
Existing users may apply rate-limiting quotas on the authentication endpoints: https://openbao.org/api-docs/system/rate-limit-quotas/
References
This issue was disclosed to HashiCorp and is the OpenBao equivalent of the following tickets:
CWEs
- CWE-307 · Improper Restriction of Excessive Authentication Attempts
References
- https://github.com/openbao/openbao/security/advisories/GHSA-j3xv-7fxp-gfhx ↗
- https://nvd.nist.gov/vuln/detail/CVE-2025-6004 ↗
- https://github.com/openbao/openbao/commit/c52795c1ef746c7f2c510f9225aa8ccbbd44f9fc ↗
- https://discuss.hashicorp.com/t/hcsec-2025-16-vault-userpass-and-ldap-user-lockout-bypass/76035 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2025-54998 ↗
- https://github.com/advisories/GHSA-j3xv-7fxp-gfhx ↗