Malware in simple-date-formatter-util
Malware was discovered in the npm package simple-date-formatter-util. Systems with this package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- simple-date-formatter-util
A critical malware incident was identified in the npm package simple-date-formatter-util. According to the GitHub Advisory (GHSA-q32h-xc3m-rc77), 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, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the compromise, as the attacker may have gained full control of the affected system.\n\nUsers should treat any system that has run this package as potentially containing persistent malware and take appropriate incident response measures.
Indicators of compromise
- Packages
- simple-date-formatter-util
Remediation
- Immediately remove the simple-date-formatter-util package from all systems
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Perform a full security audit and malware scan of any system that had this package installed
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected system(s) as potentially compromised and plan for full remediation or replacement
- Monitor for any suspicious activity on systems that may have been affected
Sources
- GitHub Advisory GHSA-q32h-xc3m-rc77 · GitHub Advisory Database
Cite this entry
"Malware in simple-date-formatter-util." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 2, 2026; last updated August 2, 2026. https://supplychainattack.org/incident/malware-in-simple-date-formatter-util-1ey9z1
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