CVE-2026-45043
CRITICAL EPSS 13.2%
Published May 29, 20261mo ago · Modified Jun 17, 20262w ago
9.3 CVSS 4.0
Published May 29, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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 Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
13.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-269 Improper Privilege Management Authorization
CWE-284
References 1
- github.com https://github.com/rustfs/rustfs/security/advisories/GHSA-566f-q62r-wcr8
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.