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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.

PUBLISHED Reserved 2026-01-05 | Published 2026-02-03 | Updated 2026-02-03 | Assigner GitHub_M




HIGH: 7.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

Problem types

CWE-290: Authentication Bypass by Spoofing

Product status

< alpha.78
affected

References

github.com/...rustfs/security/advisories/GHSA-fc6g-2gcp-2qrq

cve.org (CVE-2026-21862)

nvd.nist.gov (CVE-2026-21862)

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