CVE-2025-54999

LOW EPSS 7.7%
Published Aug 9, 202510mo ago · Modified Jun 17, 20262w ago
3.7 CVSS 3.1
Low
Find Similar
Published Aug 9, 2025 10mo ago
Last Modified Jun 17, 2026 2w ago

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/.

CVSS Details

Base Score
3.7
Exploitability
2.2
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
7.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-203

Affected Products 1

VendorProductVersionRange
openbaoopenbao* <2.3.2

References 4

  • discuss.hashicorp.com https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034
    Not Applicable
  • discuss.hashicorp.com https://discuss.hashicorp.com/t/hcsec-2025-21-vault-user-enumeration-in-userpass-auth-method/76095
    Not Applicable
  • github.com https://github.com/openbao/openbao/commit/4d9b5d3d6486ab9fbd5b644173fa0097015d6626
    Patch
  • github.com https://github.com/openbao/openbao/security/advisories/GHSA-hh28-h22f-8357
    Vendor Advisory

Remediation

  • github.com https://github.com/openbao/openbao/commit/4d9b5d3d6486ab9fbd5b644173fa0097015d6626
    Patch