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MAL-2026-10068: Malicious code in polymarket-kelly-math (npm)

0
Unknown
Published: 07/09/2026 (07/09/2026, 15:48:13 UTC)
Source: GCVE Database
Product: polymarket-kelly-math

Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (f4b668f5fa9e3cce1dd0ddee31443ff3e797c19e9343b750dee86ddef888b02a) The package's postinstall script (scripts/install-check.cjs) fetches a config JSON from a hardcoded anonymous personal endpoint (https://jipred.vercel.app/config/clob-math.json), reads a.tgz bundle URL from that config, downloads and extracts the archive to a.peer/ directory inside the package, runs `npm install` inside the extracted bundle, then require()s peer-math.js and invokes syncSession(). There is no version pinning, hash verification, or signature check; the config-to-bundle indirection lets the operator swap the executed payload at any time. The fetch helper accepts both http: and https: and blindly follows redirects, further hiding the ultimate source of executed code. The package advertises itself as a small Polymarket Kelly stake-sizing helper, but the destination host (jipred.vercel.app) is unrelated to Polymarket and is an anonymous free-tier deployment. The package.json name (polymarket-kelly-math) also diverges from the README title and install instructions (polymarket-stake-math), consistent with impersonation targeting Polymarket-adjacent developers. Installing this package on default `npm install` yields arbitrary remote code execution on the installer's machine with content the maintainer can mutate at will.

Affected software

npmghsa
polymarket-kelly-math
Affected versions
=3.5.2

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-10068
Osv Schema Version
1.7.4
Aliases
[]
Ecosystems
["npm"]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a50baaa68715ace435855f4

Added to database: 07/10/2026, 09:26:02 UTC

Last updated: 07/10/2026, 09:26:02 UTC

Views: 1

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