🛡️ MAL-2026-13548 — devplatform-stylelint-config

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

Description

Malicious code in devplatform-stylelint-config (npm)

Source: amazon-inspector

The package is published as 'devplatform-stylelint-config' with description 'environment config reader' and exposes a trivial ConfigLoader from index.js, but index.js also require()s./setup.js which runs at library load. setup.js assembles Cloudflare Workers hostnames (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev) and dl.wel1.ru subdomains (sdk./ext./pkg./net.) from array joins to defeat literal string matching, with a DNS-TXT chunked base64 fallback channel (c.<domain> count plus <i>.<domain> chunks via resolveTxt). It downloads a platform-specific binary over HTTPS, writes it to a hidden temp path (/tmp/.cache_<hex> or %TEMP%/dotnet_diag_<hex>.exe), chmods 0755, and detaches it via cp.spawn('/bin/sh', ['-c', fp+' &'], {detached:true}).unref() (with a cmd equivalent on Windows). No hash or signature verification is performed. Cover-story naming ('analytics_state', a DISABLE_TELEMETRY gate) and the package name/description mismatch conceal the payload.

Affected software

MAL-2026-13548 is recorded against 1 package.

  • devplatform-stylelint-config

Timeline and source

Published on 7 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 2026-08-07
Updated 2026-08-12
Modified 2026-08-07
Fix URL N/A

Affected Packages

Software From version Fixed in
devplatform-stylelint-config — —

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