CVE-2026-45043

published 2026-05-29

CVE-2026-45043: 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…

Priority P2 61 critical 9.3 CVSS 4.0

AV N AC L AT N PR L UI N VC H VI H VA N SC H SI H SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
rustfs	rustfs	< 1.0.0-beta.2	1.0.0-beta.2

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CWE-269 CWE-284