gemini-cli-a2a-servernpm
gemini-cli-a2a-server is a confirmed malicious npm package (MAL-2026-14244) that typosquats a legitimate package to trick installs (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in gemini-cli-a2a-server (npm)
What this malware does
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.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
TyposquatFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for gemini-cli-a2a-server (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging gemini-cli-a2a-server across your stack and pipelines.
If you installed it — respond
gemini-cli-a2a-server is a typosquat — you almost certainly intended a legitimately-named package. Remove gemini-cli-a2a-server, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.
Did it already run?
If gemini-cli-a2a-server was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks gemini-cli-a2a-server before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks gemini-cli-a2a-server-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.