VDB
GCVE-110-OSM-2026-12109
GCVE-110-OSM-2026-12109
Advisory PublishedCVSS 8.8/10
index.js and the postinstall lifecycle script contact a hardcoded bare-IP endpoint at http://69.48.229.140:8080 over plain HTTP. On `npm install`, the postinstall hook collects host identifiers (hostname, username, platform, arch, cwd, node version, pid, all non-internal IP addresses, uptime, package name) and POSTs them as JSON to /b. On `require()` of the package main, the module beacons the same host, then polls /c every 30 seconds for JSON commands and executes the `c` field via child_process.exec, POSTing stdout/stderr back to /r. A source comment self-identifies the module as a stealth typosquat agent, while package.json advertises only a generic "small utility" description.
ENTRY
postinstall.js (install-hook: node postinstall.js)
- Install Hook Executes Local JS File in package.json
DESTINATION
- 1 exfil (custom-c2)
(values recorded in verified_iocs)
EXFIL
- System Information Exfiltration in index.js: "os.hostname(), platform: os.platform(), arch: os.arch(), user: os.userInfo().use..."
- Data Encoding for Exfiltration in index.js: "encodeURIComponent(id), function (d"
- System Information Exfiltration in postinstall.js: "os.hostname() + '_' + process.pid, host: os.hostname(), platform: os.platform(),..."
- Network Request in index.js: "http.request("
- System Information Collection in index.js: "os.userInfo()"
- Network Request in postinstall.js: "http.request("
- System Information Collection in postinstall.js: "os.userInfo()"
ADDITIONAL FINDINGS
- Shell Command Execution in index.js: "require('child_process')"
- Very New NPM Publisher Account
- Publisher Has Other Malicious Packages
- Publisher Shows Burner-Account Pattern
PAYLOAD FILES
index.js (+ postinstall.js)
Weaknesses (CWE)
CWE-506Embedded Malicious Code
Risk Scores
CVSS 3.1
8.8/10
High · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| unknown | @prime0/pcomatch | all (affected) | — |
Aliases
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