CVE-2026-45043

RustFS: ImportIam Allows Creation of Backdoor Service Accounts Under Any Parent Including Root

Published: May 29, 2026Updated: Jul 21, 2026 Sources: CVE List NVDCWE-269

N/ACVSS

NVD MITRE

Description

RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, improper validation in the PUT /rustfs/admin/v3/import-iam endpoint allows a user with ImportIAMAction to create service accounts under arbitrary parent identities, including the root user (minioadmin). The endpoint accepts attacker-controlled parent, claims, accessKey, and secretKey values without enforcing privilege boundaries or sanitization. This enables privilege escalation to full administrative access using a persistent, attacker-defined credential. This vulnerability is fixed in 1.0.0-beta.2.

No summary for this CVE yet.

Weaknesses

CWE-269 CWE-284

Affected Products

rustfs

oss-project

rustfsLibrary

OSS Libraries / generic-library

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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MITRE ATT&CK

1 technique

Privilege Escalation

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References

https://github.com/rustfs/rustfs/security/advisories/GHSA-566f-q62r-wcr8

github.com

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