Which versions of mapkit-loader are malicious?

The following npm versions of mapkit-loader are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate mapkit-loader if I installed it?

mapkit-loader is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed mapkit-loader — how do I know if it already compromised me?

If mapkit-loader was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Is mapkit-loader part of a known attack campaign?

Yes — mapkit-loader is associated with the IN-MAL-2026-018322 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 mapkit-loader across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for mapkit-loader (version 1.0.0).

Malicious package

mapkit-loadernpm

mapkit-loader is a confirmed malicious npm package (MAL-2026-14218) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in mapkit-loader (npm)

MAL-2026-14218

Immediate action

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

npm uninstall mapkit-loader

What this malware does

Unscoped npm package 'mapkit-loader' impersonates the scoped '@apple/mapkit-loader' to intercept mistyped npx mapkit-loader invocations. The package.json self-describes as a 'PoC' targeting that confusion. On npm install, the postinstall lifecycle script (postinstall.js) unconditionally issues an HTTPS POST to a hardcoded third-party endpoint at npx-monitor-76056.azurewebsites.net/api/pingback carrying a persistent UUID, package version, trigger source ('npm-postinstall'), and timestamp. The UUID is written to ~/.cache/.mapkit-loader-id so subsequent executions (including the bin entry) can be correlated back to the same host. No credential or filesystem exfiltration is present, but the combination of name-confusion targeting an official Apple scope plus install-time beaconing to an author-controlled endpoint is a supply-chain typosquat with an operational tracking channel.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

cb2d3c3e234b52b2bbffe7b197f9ec483b2b574667543338b975c99831633c86

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for mapkit-loader (version 1.0.0).
If you installed it — respond
mapkit-loader is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If mapkit-loader was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. mapkit-loader on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-018322

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks mapkit-loader-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

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