---
id: CVE-2026-73284
title: RustFS is a distributed object storage system built in Rust
summary: >-
  RustFS is a distributed object storage system built in Rust. RustFS
  AddServiceAccount in rustfs/src/admin/handlers/service_account.rs accepts an
  attacker-controlled target_user after only checking
  CreateServiceAccountAdminAction, passes …
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-269
published: '2026-08-12'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:55:04.493'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73284'
references:
  - url: >-
      https://github.com/rustfs/rustfs/commit/9866f68d86482b3de7e0058a908727c3815e72b9
    label: security-advisories@github.com
  - url: 'https://github.com/rustfs/rustfs/pull/5141'
    label: security-advisories@github.com
  - url: 'https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.11'
    label: security-advisories@github.com
  - url: 'https://github.com/rustfs/rustfs/security/advisories/GHSA-5354-r3w2-34m8'
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00283
epssPercentile: 0.21115
ingestedAt: '2026-09-09T21:22:45.531Z'
---

## Overview

RustFS is a distributed object storage system built in Rust. RustFS AddServiceAccount in rustfs/src/admin/handlers/service_account.rs accepts an attacker-controlled target_user after only checking CreateServiceAccountAdminAction, passes it to new_service_account, and prepare_service_account_auth sets is_owner for the resulting root-parent service account. This issue is fixed in version 1.0.0-beta.11.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.