Description
RustFS is a distributed object storage system built in Rust. In 1.0.0-beta.7 and earlier, the real-time metrics endpoint at /rustfs/admin/v3/metrics is accessible to any valid IAM user regardless of their assigned policy. Every other admin handler in the codebase calls validate_admin_request to enforce admin-action IAM checks; the MetricsHandler skips this call entirely. A restricted IAM user whose policy grants only access to their own bucket can read server-wide operational metrics including disk I/O statistics, network throughput, scanner cycle timing, and cluster RPC state.
References (1)
Core 1
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/rustfs/rustfs/security/advisories/GHSA-f5cv-v44x-2xgf
Scores
CVSS v3
4.3
EPSS
0.0016
EPSS Percentile
5.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (1)
rustfs/rustfs
<= 1.0.0-beta.7
Published
Jun 26, 2026
Tracked Since
Jun 27, 2026