Which versions of polmarket are malicious?

Every published version of polmarket on npm is considered malicious. Remove the package entirely.

How do I remediate polmarket if I installed it?

Remove polmarket from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

I already installed polmarket — how do I know if it already compromised me?

If polmarket was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

Is polmarket part of a known attack campaign?

Yes — polmarket is associated with the GHSA-8qhc-629g-gmwr campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find polmarket across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for polmarket (all published versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging polmarket across your stack and pipelines.

Malicious package

polmarketnpm

Malicious code in polmarket (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-1203

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall polmarket

What this malware does

The package polmarket was found to contain malicious code.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

all versions

Every published version of this package is considered malicious — remove it entirely.

Indicators of compromise (SHA-256)

be6a87de77c124ff75dbce268ef62ae226ca99de2026d5178d14f6b38ba0888b

11f6a7f9b6e3b1841c2ab98dd4f2b65abf89d0ff9632d58fe14a1b2b9f5ac846

Detection & response playbook

Malicious package

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for polmarket (all published versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging polmarket across your stack and pipelines.
If you installed it — respond
Remove polmarket from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If polmarket was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks polmarket before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. polmarket on npm has been identified as a malicious package (all published versions flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-8qhc-629g-gmwr

References

github.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks polmarket-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring