9.8

CVE-2026-22043

Exploit

RustFS has IAM deny_only Short-Circuit that Allows Privilege Escalation via Service Account Minting

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Rustfs ≫ Rustfs Version 1.0.0 Update alpha13 SwPlatform rust
Rustfs ≫ Rustfs Version 1.0.0 Update alpha14 SwPlatform rust
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Rustfs ≫ Rustfs Version 1.0.0 Update alpha68 SwPlatform rust
Rustfs ≫ Rustfs Version 1.0.0 Update alpha69 SwPlatform rust
Rustfs ≫ Rustfs Version 1.0.0 Update alpha70 SwPlatform rust
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Rustfs ≫ Rustfs Version 1.0.0 Update alpha78 SwPlatform rust
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.39% 0.321
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
security-advisories@github.com 5.7 0 0
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
CWE-269 Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CWE-522 Insufficiently Protected Credentials

The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

https://github.com/rustfs/rustfs/security/advisories/GHSA-xgr5-qc6w-vcg9
Vendor Advisory
Exploit