Malware in postcss-motion-utils
Malware was discovered in the npm package postcss-motion-utils. 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
- postcss-motion-utils
The npm package postcss-motion-utils was found to contain malware. According to the GitHub Advisory (GHSA-m763-9wch-p9gg), 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.\n\nThis represents a critical supply chain attack through a compromised package in the npm ecosystem, with potential for complete system compromise on any machine where the package was installed or executed.
Indicators of compromise
- Packages
- postcss-motion-utils
Remediation
- Immediately isolate any computer that has postcss-motion-utils installed or running from the network
- Rotate all secrets, API keys, credentials, and signing keys from a different, uncompromised computer
- Remove the postcss-motion-utils package from all affected systems
- Conduct a full forensic analysis of affected systems to identify any additional malicious software or persistence mechanisms
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system reimaging if complete compromise is suspected
Sources
- GitHub Advisory GHSA-m763-9wch-p9gg · GitHub Advisory Database
Cite this entry
"Malware in postcss-motion-utils." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 28, 2026; last updated July 28, 2026. https://supplychainattack.org/incident/malware-in-postcss-motion-utils-1fc65x
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