Malware in polygon-toolkit-validate
Malware discovered in the npm package polygon-toolkit-validate. The package grants full system compromise to attackers, requiring immediate removal and credential rotation from a clean system.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- polygon-toolkit-validate
The npm package polygon-toolkit-validate has been identified as containing malware. According to the GitHub Advisory (GHSA-w4vh-7827-g474), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends that all secrets and 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 given to an outside entity, meaning removal of the package alone may not eliminate all malicious software that resulted from installation.\n\nThis represents a critical supply chain attack through a compromised npm package with potential for complete system takeover.
Indicators of compromise
- Packages
- polygon-toolkit-validate
Remediation
- Immediately isolate any computer with polygon-toolkit-validate installed from the network
- Rotate all secrets, API keys, and credentials from a clean, uncompromised system
- Remove the polygon-toolkit-validate package
- Perform a full security audit and malware scan of affected systems
- Review system logs for unauthorized access or data exfiltration
- Consider the affected system fully compromised and plan for complete rebuild if critical infrastructure
Sources
- GitHub Advisory GHSA-w4vh-7827-g474 · GitHub Advisory Database
Cite this entry
"Malware in polygon-toolkit-validate." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 20, 2026; last updated August 20, 2026. https://supplychainattack.org/incident/malware-in-polygon-toolkit-validate-n3pm3e
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- resolvedcritical
Malicious code in rust-testing-utils (npm)
The npm package rust-testing-utils contained malicious code that impersonates the pino logger and executes remotely-fetched code with arbitrary privileges. The package spawns a child process that decodes a hardcoded URL, fetches attacker-controlled content, and executes it via Function constructor with full module-loading capability.
npmCompromised packageMalicious commit - containedcritical
Malicious code in stillm4ddpocs-demo-sprocket (npm)
The npm package stillm4ddpocs-demo-sprocket version 999.9.12 contains malicious code that exfiltrates system and project metadata via multiple channels (HTTPS, HTTP, and DNS) to a hardcoded callback host. The package uses a high version number to exploit dependency-confusion attacks against organizations with internal packages of the same name.
npmCompromised packageDependency confusion - containedcritical
Malicious code in @syncraft-labs/react (npm)
The npm package @syncraft-labs/react contained obfuscated malicious code in its ESM distribution that implements the EtherHiding pattern, fetching and executing arbitrary code from an Ethereum smart contract via RPC endpoints. The tampering occurred post-build in the dist/index.js artifact.
npmCompromised package - containedcritical
Malware in hydration-dim-kit
Malware was discovered in the npm package hydration-dim-kit. Any computer with this package installed or running should be considered fully compromised. All secrets and keys must be rotated immediately from a different computer.
npmCompromised package