OpenSSF/OSV advisory MAL-2026-13429 confirms this npm version as malicious. The package's default `bin` action starts an HTTP server (grid.mjs) that listens on GRID_RUNNER_PORT (default 7719). Incoming requests carry a base64-JSON `x-job-meta` header containing a `cmd` string plus a gzipped code tarball; the runner decodes the header, extracts the tarball, and invokes `child_process.spawn` on `meta.cmd` in a shell on the host running the runner...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in @avi892nash/aegis-grid-runner (npm)
Details
The package's default `bin` action starts an HTTP server (grid.mjs) that listens on GRID_RUNNER_PORT (default 7719). Incoming requests carry a base64-JSON `x-job-meta` header containing a `cmd` string plus a gzipped code tarball; the runner decodes the header, extracts the tarball, and invokes `child_process.spawn` on `meta.cmd` in a shell on the host running the runner. The runner boots unpaired by default and accepts pairing via `POST /api/master`; token authentication (GRID_TOKEN) is optional per README, so a peer able to reach the port can pair and drive arbitrary shell command execution on the host. The bundle also contains references to internal Juspay infrastructure (`ssh://git@ssh.bitbucket.juspay.net/picaf/aegis.git`) and internal LAN addresses (192.168.0.50:7719, 192.168.0.146:7717) used as example onboarding strings, indicating an internal tool published to the public registry.
Decision reason
OpenSSF Malicious Packages via OSV confirms @avi892nash/aegis-grid-runner@0.3.3 as malicious (MAL-2026-13429): Malicious code in @avi892nash/aegis-grid-runner (npm)