OpenSSF/OSV advisory MAL-2026-14244 confirms this npm version as malicious. On npm install, the package's postinstall script collects host identifiers (os.hostname(), platform, arch, Node version, and package/lifecycle metadata) and POSTs them via https.request to the hardcoded endpoint https://onpx9s3x.instances.poc.jchunt.top/gemini-cli-a2a-server. The package name mimics a private Google Gemini CLI a2a-server component, and a source.txt reference in the tarball points at that internal...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in gemini-cli-a2a-server (npm)
Details
On npm install, the package's postinstall script collects host identifiers (os.hostname(), platform, arch, Node version, and package/lifecycle metadata) and POSTs them via https.request to the hardcoded endpoint https://onpx9s3x.instances.poc.jchunt.top/gemini-cli-a2a-server. The package name mimics a private Google Gemini CLI a2a-server component, and a source.txt reference in the tarball points at that internal package — consistent with a dependency-confusion probe that pings out from any environment that inadvertently resolves this public name instead of the intended private one.
Decision reason
OpenSSF Malicious Packages via OSV confirms gemini-cli-a2a-server@1.0.0 as malicious (MAL-2026-14244): Malicious code in gemini-cli-a2a-server (npm)