Vulnerability · Published Aug 12, 2026 · Assigned by GitHub_M

CVE-2026-73284RustFS: AddServiceAccount Handler Allows Creation of Root-Parent Service Accounts

High 8.8

In plain English

A high-severity privilege mismanagement in rustfs from rustfs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 55.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
rustfs	rustfs	< 1.0.0-beta.11

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/rustfs/rustfs/security/advisories/GHSA-5354-r3w2-34m8 x_refsource_CONFIRM
https://github.com/rustfs/rustfs/pull/5141 x_refsource_MISC
https://github.com/rustfs/rustfs/commit/9866f68d86482b3de7e0058a908727c3815e72b9 x_refsource_MISC
https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.11 x_refsource_MISC