polymarket-stake-kelly-math-check (npm) · Malicious Code
Affects polymarket-stake-kelly-math-checkSource GCVE Database
Malicious package : remove polymarket-stake-kelly-math-check and rotate any secrets on hosts that installed it.
Data as of 14 Jul 2026, 09:47 UTC
Malicious package
Published to npm · OSV MAL-2026-10485
What to do
Remove polymarket-stake-kelly-math-check from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmpolymarket-stake-kelly-math-check | Affected
| Fixed in– |
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Description
The polymarket-stake-kelly-math-check npm package version 3.5.2 contains malicious code that executes a postinstall hook to download and run unverified remote code. This remote payload is fetched from a mutable, unauthenticated URL controlled by the package publisher, allowing arbitrary code execution on the host system. The package's installation process silently swallows errors, potentially hiding malicious activity. Any system with this package installed should be considered fully compromised, and secrets on that system must be rotated immediately.