OpenSSF/OSV advisory MAL-2026-13420 confirms this npm version as malicious. The npm package's postinstall script (scripts/postinstall.js) requires child_process and issues POST requests carrying environment and host identifier data at install time. Installing the package causes automatic outbound network activity from a lifecycle hook that reads local process state, matching the shape of an install-time credential/host reconnaissance beacon rather than a documented build step.
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in @innocarpe/deepseek-build (npm)
Details
The npm package's postinstall script (scripts/postinstall.js) requires child_process and issues POST requests carrying environment and host identifier data at install time. Installing the package causes automatic outbound network activity from a lifecycle hook that reads local process state, matching the shape of an install-time credential/host reconnaissance beacon rather than a documented build step.
Decision reason
OpenSSF Malicious Packages via OSV confirms @innocarpe/deepseek-build@1.0.0 as malicious (MAL-2026-13420): Malicious code in @innocarpe/deepseek-build (npm)