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CVE-2025-59048— OpenBao AWS Plugin Vulnerable to Cross-Account IAM Role Impersonation in AWS Auth Method

Quick assessment

Affected
openbao openbao-plugins
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenBao和OpenBao Plugins都是OpenBao开源的产品。OpenBao是一个敏感数据管理软件。OpenBao Plugins是一个插件。 OpenBao Plugin AWS 0.1.1之前版本存在安全漏洞，该漏洞源于AWS身份验证方法中存在跨账户IAM角色模拟问题，可能导致未经授权的访问。

CVSS 8.1 · High EPSS 0.27% · P17

Possible ATT&CK Techniques 1 AI

T1199 · Trusted Relationship
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I. Basic Information for CVE-2025-59048

Vulnerability Information
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Vulnerability Title
OpenBao AWS Plugin Vulnerable to Cross-Account IAM Role Impersonation in AWS Auth Method
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
OpenBao Plugin AWS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenBao和OpenBao Plugins都是OpenBao开源的产品。OpenBao是一个敏感数据管理软件。OpenBao Plugins是一个插件。 OpenBao Plugin AWS 0.1.1之前版本存在安全漏洞，该漏洞源于AWS身份验证方法中存在跨账户IAM角色模拟问题，可能导致未经授权的访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openbao openbao-plugins < 0.1.1 -

II. Public POCs for CVE-2025-59048

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9865 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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III. Intelligence Information for CVE-2025-59048

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IV. Related Vulnerabilities

Same vendor: openbao
Same weakness: CWE-863

V. Comments for CVE-2025-59048

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