CVE-2026-22043
MEDIUM EPSS 29.6%
Published Jan 8, 20265mo ago · Modified Jun 17, 20262w ago
5.7 CVSS 4.0
Published Jan 8, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/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
29.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 3
CWE-269 Improper Privilege Management Authorization
CWE-284
CWE-522
Affected Products 66
| Vendor | Product | Version | Range |
|---|---|---|---|
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
| rustfs | rustfs | 1.0.0 | any |
References 1
- github.com https://github.com/rustfs/rustfs/security/advisories/GHSA-xgr5-qc6w-vcg9
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.