OpenSSF/OSV advisory MAL-2026-6885 confirms this npm version as malicious. No suspicious behaviors were observed in this package version. There are no lifecycle scripts performing remote fetches, no obfuscated payloads, no environment or credential reads, no hardcoded outbound network destinations, and no other indicators of installer-side harm.
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in tailstyle-core (npm)
Details
No suspicious behaviors were observed in this package version. There are no lifecycle scripts performing remote fetches, no obfuscated payloads, no environment or credential reads, no hardcoded outbound network destinations, and no other indicators of installer-side harm.
## Source: ghsa-malware (8d58ebbfb8209c3d200f5741ec4ab3974f32426374fca8c2f647766c5f027b0f) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Decision reason
OpenSSF Malicious Packages via OSV confirms tailstyle-core@0.0.1 as malicious (MAL-2026-6885): Malicious code in tailstyle-core (npm)