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Critical 9.1Published Feb 24, 2026

CVE-2026-27822Rust has Critical Stored XSS in Preview Modal, leading to Administrative Account Takeover

Updated under an hour ago ()

Does this affect you?

It affects rustfs. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Analyzed
Record last updated
Feb 25, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
rustfs rustfs
rustfs:rustfs (from the name)
before 1.0.0-alpha.83
CNA record
rustfs rustfs
rustfs:rustfs
1.0.0; 1.0.0; 1.0.0; 1.0.0; 1.0.0; 1.0.0; 1.0.0; 1.0.0; and 74 more ranges
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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