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Malicious package

paper-password-inputnpm

Advisory published Updated

paper-password-input is a confirmed malicious npm package (MAL-2026-15542) that executes malicious code on install (malicious version 45.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in paper-password-input (npm)

MAL-2026-15542
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall paper-password-input

What this malware does

package.json declares a dependency whose key equals the package's own name (paper-password-input) and whose value is a bare HTTPS URL, https://repo.securityctrl.com/paper-password-input, rather than a registry version range. On npm install, npm fetches whatever bytes are served at that URL with no version pin and no integrity check, and executes any lifecycle scripts inside the fetched tarball. The shipped index.js is an inert stub, so the manifest itself is the entire published surface — whoever controls repo.securityctrl.com can deliver arbitrary code to every installer, and the self-named dependency shape is consistent with a dependency-confusion lure targeting an internal package name.

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

1 flagged
45.0.0

Indicators of compromise (SHA-256)

a97853ce25938b0cc295a798fa8c9ae8ab513126e70b93084785636a91bc7ec4
1d35bd6e36e34e447d64a6e9a1a8a12397cec2c0aafe76ec205318903dc04b14

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for paper-password-input (version 45.0.0).

  2. If you installed it — respond

    Remove paper-password-input from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If paper-password-input 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. paper-password-input on npm has been identified as a malicious package (version 45.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-019103GHSA-p8fv-qch5-j7m9

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks paper-password-input-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.

Explore

paper-password-input (npm) malicious package — MAL-2026-15542 | O3 Security