Malware in eslintcmd
The npm package eslintcmd was found to contain malware, resulting in full system compromise of any computer with the package installed or running. GitHub Security Advisory GHSA-73c6-pgjj-9v82 was published on 2026-07-29.
- Disclosed
- Last updated
- Blast radius
- Any system with eslintcmd installed or executed
- Ecosystems
- Attack vectors
- Affected entities
- eslintcmdnpm package containing malware
The npm package eslintcmd was identified as containing malware. According to the GitHub Security Advisory, any computer that has this package installed or running should be considered fully compromised.\n\nImmediate remediation requires rotating all secrets and keys stored on affected computers 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 initial compromise, given that the attacker may have gained full control of the system.\n\nThis incident was disclosed via GitHub Advisory GHSA-73c6-pgjj-9v82 on July 29, 2026.
Indicators of compromise
- Packages
- eslintcmd
Remediation
- Immediately isolate any computer with eslintcmd installed from the network
- Rotate all secrets, API keys, credentials, and signing keys from a different, uncompromised computer
- Remove the eslintcmd package from all affected systems
- Perform a full forensic analysis and malware scan on affected systems
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system rebuild if compromise is confirmed
Sources
- GitHub Advisory GHSA-73c6-pgjj-9v82 · GitHub Advisory Database
Cite this entry
"Malware in eslintcmd." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 29, 2026; last updated July 29, 2026. https://supplychainattack.org/incident/malware-in-eslintcmd-j8o3xy
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 test2221 (npm)
The npm package test2221 version 2.2.4 was identified as malicious by the OpenSSF Package Analysis project. The package executes commands associated with malicious behavior.
npmCompromised package - containedcritical
Malware in n8n-nodes-trust-me-im-totally-safe
Malware was discovered in the npm package n8n-nodes-trust-me-im-totally-safe, resulting in full system compromise for any computer with the package installed or running. All secrets and keys on affected systems should be rotated immediately from a different computer.
npmCompromised package - activecritical
Malware in litespeed-cache
Malware discovered in the npm package litespeed-cache. The package grants full system compromise to attackers, requiring immediate removal and credential rotation from a clean system.
npmCompromised package - containedcritical
Malware in open-worker-cli
Malware was discovered in the npm package open-worker-cli. Systems with this package installed or running should be considered fully compromised, with all secrets and keys requiring immediate rotation from a different computer.
npmCompromised package