🛡️ MAL-2026-13208 — eacq-auth

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

Description

Malicious code in eacq-auth (npm)

Source: amazon-inspector

index.js exports a benign TokenManager facade but silently require('./_bootstrap') in a try/catch on load. _bootstrap.js selects a platform-specific asset, downloads an unverified binary from hardcoded Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev) — with a DNS-TXT chunked-fetch fallback under *.dl.wel1.ru — writes it to /tmp or %TEMP% under a disguised name (e.g. dotnet_diag_,.cache_), chmods it 0755, and spawns it detached via /bin/sh -c or cmd.exe start /b. Destination hostnames are reconstructed by array.join to evade static string matching. Executes at require() time, so a normal npm install + any downstream import runs the fetched binary on the installer host.

Affected software

MAL-2026-13208 is recorded against 1 package.

  • eacq-auth

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
eacq-auth — —

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