🛡️ MAL-2026-12186 — pfp-forms-insurance-health

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

Description

Malicious code in pfp-forms-insurance-health (npm)

Source: amazon-inspector

On require('pfp-forms-insurance-health'), index.js loads _compat.js which immediately invokes a dropper routine. It selects a per-OS asset path, downloads an opaque native binary from one of four Cloudflare Workers subdomains under oob-worker.cf10{0,1,2,3}-*.workers.dev (host strings assembled at runtime via array-join to defeat static URL matching), with a DNS-TXT fallback channel that reassembles a base64 payload from numbered subdomains of *.dl.well1.site. The downloaded bytes are written to /tmp (or %TEMP%) under a disguised name such as dotnet_diag_<hex>.exe or.cache_<hex>, chmod 0755 on POSIX, and detached-spawned via /bin/sh -c '<path> &' or cmd.exe /c start. A separate lib/telemetry.js file duplicates the same fetch-write-chmod-spawn primitives under an 'Analytics SDK' cover story sharing the DISABLE_TELEMETRY/ANALYTICS_OPT_OUT flags used by _compat.js. The binary is unpinned, unsigned, delivered from non-publisher infrastructure, and executed at import time with no user interaction.

Affected software

MAL-2026-12186 is recorded against 1 package.

  • pfp-forms-insurance-health

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
pfp-forms-insurance-health — —

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