🛡️ MAL-2026-12034 — beaver-ui-form-modal

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

Description

Malicious code in beaver-ui-form-modal (npm)

Source: amazon-inspector

On require('beaver-ui-form-modal'), index.js loads _shim.js which downloads a platform-specific binary from string-array-obfuscated Cloudflare Worker subdomains (oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT chunked-base64 fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The downloaded bytes are written to a hidden temp path with names mimicking 'dotnet_diag' / '.cache_', chmodded 0755, and spawned detached via cp.spawn('/bin/sh', ['-c', fp + ' &'], {detached:true, stdio:'ignore'}) (with a cmd variant for Windows). Hostnames and API identifiers are assembled at runtime via array.join('') to conceal the destinations from static scanners. The fetched binary is unpinned, unverified, and unrelated to any UI-form-modal functionality. lib/telemetry.js additionally carries a dormant sibling dropper (cp.spawn '/bin/sh' + chmodSync 0755, framed as an 'analytics SDK') not reached from the current main entry.

Affected software

MAL-2026-12034 is recorded against 1 package.

  • beaver-ui-form-modal

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)
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
beaver-ui-form-modal — —

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