Malware in tailstyle-core
Malware was discovered in the npm package tailstyle-core. Systems with the package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with tailstyle-core installed or running
- Ecosystems
- Attack vectors
- Affected entities
- tailstyle-core
A malware incident was identified in the npm package tailstyle-core. According to the GitHub Advisory (GHSA-6wvg-r7v4-jm68), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends immediate rotation of all secrets and keys from a different, unaffected computer. While the package should be removed, complete removal of all malicious software cannot be guaranteed due to the potential for full system compromise.\n\nThe incident was published on 2026-07-06 via the GitHub Advisory database.
Indicators of compromise
- Packages
- tailstyle-core
Remediation
- Immediately rotate all secrets and keys from a different, unaffected computer
- Remove the tailstyle-core package from all affected systems
- Conduct a full security audit of any system that had tailstyle-core installed
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical infrastructure
- Monitor for any signs of unauthorized access or persistence mechanisms
Sources
- GitHub Advisory GHSA-6wvg-r7v4-jm68 · GitHub Advisory Database
Cite this entry
"Malware in tailstyle-core." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 6, 2026; last updated July 6, 2026. https://supplychainattack.org/incident/malware-in-tailstyle-core-17n3gj
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