CVE-2026-22042— RustFS has IAM Incorrect Authorization in ImportIam that Allows Privilege Escalation
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I. Basic Information for CVE-2026-22042
Vulnerability Information
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Vulnerability Title
RustFS has IAM Incorrect Authorization in ImportIam that Allows Privilege Escalation
Source: NVD (National Vulnerability Database)
Vulnerability Description
RustFS is a distributed object storage system built in Rust. Prior to version 1.0.0-alpha.79, he `ImportIam` admin API validates permissions using `ExportIAMAction` instead of `ImportIAMAction`, allowing a principal with export-only IAM permissions to perform import operations. Since importing IAM data performs privileged write actions (creating/updating users, groups, policies, and service accounts), this can lead to unauthorized IAM modification and privilege escalation. Version 1.0.0-alpha.79 fixes the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
rustfs 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
rustfs是RustFS开源的一个高性能对象存储系统。 rustfs 1.0.0-alpha.79之前版本存在安全漏洞，该漏洞源于使用ExportIAMAction而非ImportIAMAction验证权限，可能导致未经授权的IAM修改和权限提升。
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
II. Public POCs for CVE-2026-22042
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IV. Related Vulnerabilities
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