Malware in agentsync-pkg
Malware discovered in the npm package agentsync-pkg. 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.
- Disclosed
- Last updated
- Blast radius
- Any system with agentsync-pkg installed or running
- Ecosystems
- Attack vectors
- Affected entities
- agentsync-pkg
A critical malware incident has been identified in the npm package agentsync-pkg. According to the GitHub Advisory (GHSA-6h7h-cf78-vgc2), any computer that has 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, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the package installation, as the attacker may have gained full control of the system.\n\nUsers should treat any system that has run this package as potentially compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- agentsync-pkg
Remediation
- Immediately isolate any computer that has agentsync-pkg installed or running from the network
- Rotate all secrets, API keys, credentials, and signing keys from a different, uncompromised computer
- Remove the agentsync-pkg package from all affected systems
- Conduct a full security audit and malware scan of affected systems
- Review system logs and access logs for any unauthorized activity during the period the package was installed
- Consider full system reimaging if the package was installed on critical infrastructure or systems with access to sensitive data
Sources
- GitHub Advisory GHSA-6h7h-cf78-vgc2 · GitHub Advisory Database
Cite this entry
"Malware in agentsync-pkg." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 17, 2026; last updated August 17, 2026. https://supplychainattack.org/incident/malware-in-agentsync-pkg-1f4yvp
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