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Disclosures

RustFS · RustFS

SourceIp bypass via spoofed X-Forwarded-For/Real-IP headers

SecMateSECMATE-2025-0010
VendorRustFS
ProductRustFS
ReportedDecember 8, 2025
FixedDecember 30, 2025
PublishedFebruary 3, 2026

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.

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