CVE-2026-21862— RustFS sourceIp bypass via spoofed X-Forwarded-For/Real-IP headers
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I. Basic Information for CVE-2026-21862
Vulnerability Information
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Vulnerability Title
RustFS sourceIp bypass via spoofed X-Forwarded-For/Real-IP headers
Source: NVD (National Vulnerability Database)
Vulnerability Description
RustFS is a distributed object storage system built in Rust. Prior to version alpha.78, IP-based access control can be bypassed: get_condition_values trusts client-supplied X-Forwarded-For/X-Real-Ip without verifying a trusted proxy, so any reachable client can spoof aws:SourceIp and satisfy IP-allowlist policies. This issue has been patched in version alpha.78.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用欺骗进行的认证绕过
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 alpha.78之前版本存在安全漏洞，该漏洞源于IP访问控制绕过，可能导致满足IP白名单策略。
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-2026-21862
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IV. Related Vulnerabilities
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RustFS missing admin authorization on notification target en - CVE-2026-39360
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Rust has Critical Stored XSS in Preview Modal, leading to Ad - CVE-2026-27607
RustFS's Missing Post Policy Validation leads to Arbitrary O - CVE-2026-24762
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Same weakness: CWE-290
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V. Comments for CVE-2026-21862
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