CVE-2026-27822CWE-79

Rust has Critical Stored XSS in Preview Modal, leading to Administrative Account Takeover

Critical · published February 25, 2026

CVSS v3.1
9.1
EPSS
0%
Percentile
30.8
In the wild
Unconfirmed
What it is

RustFS is a distributed object storage system built in Rust. Prior to version 1.0.0-alpha.83, a Stored Cross-Site Scripting (XSS) vulnerability in the RustFS Console allows an attacker to execute arbitrary JavaScript in the context of the management console. By bypassing the PDF preview logic, an attacker can steal administrator credentials from `localStorage`, leading to full account takeover and system compromise. Version 1.0.0-alpha.83 fixes the issue.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00380 · 30.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-25T02:11Z
EPSS history
Timeline
  • 25 FEB 02:11Z
    Rust has Critical Stored XSS in Preview Modal, leading to Administrative Account Takeover
    cvelistv5