react-next-domnpm
react-next-dom is a confirmed malicious npm package (MAL-2026-6825) that typosquats a legitimate package to trick installs (malicious versions 1.1.7, 17.2.7, 17.2.8). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in react-next-dom (npm)
What this malware does
react-next-dom masquerades as a React/Next.js ecosystem package but ships a pino-like surface concealing a remote code loader. The main export is a middleware factory that, when invoked, spawns node./lib/caller.js as a detached, stdio-ignored child process (spawn("node", [script,...], { detached: true, stdio: "ignore" }); child.unref()). lib/caller.js then fetches a JavaScript payload from https://jsonkeeper.com/b/D3GLF (using an x-secret-key header), and evaluates the response body in the host Node.js process via new Function.constructor("require", s)(require), retrying up to 5 times. Additional payload URLs (https://jsonkeeper.com/b/XRGF3, https://jsonkeeper.com/b/4NAKK) are hidden as base64 blobs disguised as DEV_API_KEY constants in lib/caller.js and lib/const.js. jsonkeeper.com is an anonymous public paste service — content is attacker-mutable, and the executed code runs with full require access, giving the operator arbitrary code execution on any host that loads this package's middleware. The package name evokes react/react-dom/next.js while the shipped code impersonates pino (keywords fast,logger,stream,json; files pino.js, transport, multistream, redaction; module.exports.pino = middleware), a typosquat/impersonation cover for the loader.
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.
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 react-next-dom (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging react-next-dom across your stack and pipelines.
If you installed it — respond
react-next-dom is a typosquat — you almost certainly intended a legitimately-named package. Remove react-next-dom, 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 react-next-dom 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 react-next-dom 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
- ReversingLabs · finder
Detect & block this
O3 blocks react-next-dom-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.