Malware in polymarket-gamma-apis
Malware was discovered in the npm package polymarket-gamma-apis. Any computer with this package installed or running should be considered fully compromised, with all secrets and keys requiring immediate rotation from a different system.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- polymarket-gamma-apis
A malicious package named polymarket-gamma-apis was published to npm and contains malware. According to the GitHub Advisory (GHSA-59wg-mh66-248p), any system with this package installed or running should be treated as fully compromised.\n\nThe advisory recommends that all secrets and cryptographic keys stored on affected computers be rotated immediately from a different, uncompromised system. While the package should be removed, the advisory notes that full control of the computer may have been granted to an external entity, meaning removal of the package alone may not eliminate all malicious software that resulted from installation.\n\nThis is a critical supply chain incident affecting the npm ecosystem.
Indicators of compromise
- Packages
- polymarket-gamma-apis
Remediation
- Immediately rotate all secrets, API keys, and cryptographic credentials from a different, uncompromised computer
- Remove the polymarket-gamma-apis package from all affected systems
- Audit system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected computer(s) as potentially fully compromised and plan for complete reimaging or replacement if critical systems are involved
- Notify any services or systems that may have been accessed using credentials stored on the compromised computer
Sources
- GitHub Advisory GHSA-59wg-mh66-248p · GitHub Advisory Database
Cite this entry
"Malware in polymarket-gamma-apis." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 10, 2026; last updated July 10, 2026. https://supplychainattack.org/incident/malware-in-polymarket-gamma-apis-1iwqr8
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