OpenBao's AWS Plugin generates AWS access credentials based on IAM policies. Prior to version 0.1.1, the AWS Plugin is vulnerable to cross-account IAM role Impersonation in the AWS auth method. The vulnerability allows an IAM role from an untrusted AWS account to authenticate by impersonating a role with the same name in a trusted account, leading to unauthorized access. This impacts all users of the auth-aws plugin who operate in a multi-account AWS environment where IAM role names may not be unique across accounts. This vulnerability has been patched in version 0.1.1 of the auth-aws plugin. A workaround for this issue involves guaranteeing that IAM role names are unique across all AWS accounts that could potentially interact with your OpenBao environment, and to audit for any duplicate IAM roles.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-jp7h-4f3c-9rc7 OpenBao AWS Plugin Vulnerable to Cross-Account IAM Role Impersonation in AWS Auth Method
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 23 Oct 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 23 Oct 2025 15:30:00 +0000

Type Values Removed Values Added
Description OpenBao's AWS Plugin generates AWS access credentials based on IAM policies. Prior to version 0.1.1, the AWS Plugin is vulnerable to cross-account IAM role Impersonation in the AWS auth method. The vulnerability allows an IAM role from an untrusted AWS account to authenticate by impersonating a role with the same name in a trusted account, leading to unauthorized access. This impacts all users of the auth-aws plugin who operate in a multi-account AWS environment where IAM role names may not be unique across accounts. This vulnerability has been patched in version 0.1.1 of the auth-aws plugin. A workaround for this issue involves guaranteeing that IAM role names are unique across all AWS accounts that could potentially interact with your OpenBao environment, and to audit for any duplicate IAM roles.
Title OpenBao AWS Plugin Vulnerable to Cross-Account IAM Role Impersonation in AWS Auth Method
Weaknesses CWE-694
CWE-863
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-10-23T15:40:48.665Z

Reserved: 2025-09-08T16:19:26.172Z

Link: CVE-2025-59048

cve-icon Vulnrichment

Updated: 2025-10-23T15:40:43.599Z

cve-icon NVD

Status : Received

Published: 2025-10-23T16:16:43.190

Modified: 2025-10-23T16:16:43.190

Link: CVE-2025-59048

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.