Description

RustFS is a distributed object storage system built in Rust. In versions 1.0.0-alpha.13 through 1.0.0-alpha.78, a flawed `deny_only` short-circuit in RustFS IAM allows a restricted service account or STS credential to self-issue an unrestricted service account, inheriting the parent’s full privileges. This enables privilege escalation and bypass of session/inline policy restrictions. Version 1.0.0-alpha.79 fixes the issue.

INFO

Published Date :

2026-01-08T15:03:59.313Z

Last Modified :

2026-01-08T15:54:47.243Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-22043 vulnerability.

Vendors Products
Rustfs
  • Rustfs
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-22043.

URL Resource
https://github.com/rustfs/rustfs/security/advisories/GHSA-xgr5-qc6w-vcg9 cve-icon cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability