CVE-2026-21862
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductRustfs
PublishedFeb 3, 2026
First seenFeb 3, 2026
Weakness typeCWE-290CWE-290
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| rustfs rustfs | 1.0.0 | — |
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