🛡️ MAL-2026-12492 — uploader-frontend-legacy

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Malicious code in uploader-frontend-legacy (npm)

Source: amazon-inspector

The package's scripts.install runs node index.js, which loads lib/core.js and issues a dns.resolve4 query against a subdomain of oob.sl4x0.xyz constructed from os.userInfo().username, os.hostname(), and process.cwd(), along with a package tag and timestamp. Module names (os, dns, process), API names (userInfo, hostname, cwd, resolve4), and the destination domain oob.sl4x0.xyz are assembled from String.fromCharCode byte arrays in lib/b02e30.js, lib/6ad264.js, and lib/core.js to hide the behavior from casual review. The net effect on npm install is an outbound DNS beacon carrying installer-identifying data to an author-controlled out-of-band listener.

Affected software

MAL-2026-12492 is recorded against 1 package.

  • uploader-frontend-legacy

Timeline and source

Published on 5 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.npmjs.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-05
Updated 2026-08-12
Modified 2026-08-05
Fix URL N/A

Affected Packages

Software From version Fixed in
uploader-frontend-legacy — —

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