VulnSocial

CVE-2026-55838Disclosure

LOWCVSS 4.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-862

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-06-27: 2Technical Details · 2026-06-27: 206-27
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-55838 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 … https://www.cve.org/CVERecord?id=CVE-2026-55838 ----- Traducción: CVE-2026-55838 Rus… http://infoflow.cloud`

    Post summary

    The post announces CVE‑2026‑55838 for RustFS, noting that the real‑time metrics endpoint may be inappropriately exposed, but provides no PoC, exploit code, evidence of active exploitation, or mitigation details.

    0001043
    89 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-55838 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 … https://www.cve.org/CVERecord?id=CVE-2026-55838

    Post summary

    CVE-2026-55838 identifies that RustFS versions 1.0.0‑beta.7 and earlier expose a real‑time metrics endpoint that could expose sensitive data, but the post lacks exploit details, patch info, or evidence of active use.

    00010703
    57.7K followersView on X

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