CVE-2026-27822

critical · 9

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

4.2%

EPSS (exploit prob.)

91st

EPSS percentile

2026-02-25

Published

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Weaknesses

CWE-79

Affected products

Vendor	Product	Affected versions
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0
rustfs	rustfs	1.0.0

Check a specific version with /api/v1/cve/match.

References

https://github.com/rustfs/rustfs/security/advisories/GHSA-v9fg-3cr2-277j

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-27822