CVE-2026-21862

HIGH
2026-02-03 [email protected] GHSA-fc6g-2gcp-2qrq
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

3
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Feb 03, 2026 - 16:16 nvd
HIGH 7.5

Tags

Authentication Bypass Rustfs

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.

Analysis

RustFS is a distributed object storage system built in Rust. [CVSS 7.5 HIGH]

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Remediation

Within 24 hours: Inventory all RustFS deployments and assess exposure scope; isolate affected systems from production networks where feasible. Within 7 days: Implement network segmentation to restrict RustFS access to trusted internal networks only; enable enhanced monitoring and logging on affected systems. …

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Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +38
POC: 0

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CVE-2026-21862 vulnerability details – vuln.today
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