CVE-2025-54998
MEDIUMOpenBao 0.1.0-2.3.1 - User Lockout Bypass via User Entity Alias Attribution
Title source: llmDescription
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, 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. This is fixed in version 2.3.2. To work around this issue, existing users may apply rate-limiting quotas on the authentication endpoints:, see https://openbao.org/api-docs/system/rate-limit-quotas/.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/openbao/openbao/security/advisories/GHSA-j3xv-7fxp-gfhx
Patch x_refsource_misc
https://github.com/openbao/openbao/commit/c52795c1ef746c7f2c510f9225aa8ccbbd44f9fc
Not Applicable x_refsource_misc
https://discuss.hashicorp.com/t/hcsec-2025-16-vault-userpass-and-ldap-user-lockout-bypass/76035
Scores
CVSS v3
5.3
EPSS
0.0020
EPSS Percentile
9.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-307
Status
published
Products (2)
openbao/openbao
< 2.3.2
openbao/openbao
0.1.0 - 2.3.2Go
Published
Aug 09, 2025
Tracked Since
Feb 18, 2026