Malware in @onereach/regular-expressions-test
The npm package @onereach/regular-expressions-test contained malware that could fully compromise any system on which it was installed. The package has been identified and removed from distribution.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @onereach/regular-expressions-test
The npm package @onereach/regular-expressions-test was found to contain malware. According to the GitHub Security Advisory (GHSA-56c5-f4cg-8cr2), 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 malicious 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, given the potential for full system compromise.\n\nAffected users should treat any system that installed or ran this package as potentially fully compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- @onereach/regular-expressions-test
Remediation
- Immediately remove the @onereach/regular-expressions-test package from all systems
- Rotate all secrets, API keys, and credentials from a clean, uncompromised computer
- Perform a full security audit and malware scan of any system that had this package installed
- Consider the affected system(s) as potentially fully compromised and evaluate whether reimaging or replacement is necessary
- Review access logs and audit trails for any unauthorized activity on affected systems
Sources
- GitHub Advisory GHSA-56c5-f4cg-8cr2 · GitHub Advisory Database
Cite this entry
"Malware in @onereach/regular-expressions-test." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 4, 2026; last updated August 4, 2026. https://supplychainattack.org/incident/malware-in-onereach-regular-expressions-test-1igu0t
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