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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/openbao/openbao-plugins/commit/2a77af36834746ca6d3ac9bd1049154c84b3efae Patch
- https://github.com/openbao/openbao-plugins/security/advisories/GHSA-jp7h-4f3c-9rc7 Patch, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.1 · openbaoNVD modified 2026-10-08 11:10
Affected (CPE criteria) 1
cpe:2.3:a:openbao:aws_plugin:*:*:*:*:*:*:*:*