Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
Malicious package

calcite-webnpm

Advisory published Updated

calcite-web is a confirmed malicious npm package (MAL-2026-15499) 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 calcite-web (npm)

MAL-2026-15499
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall calcite-web

What this malware does

package.json at line 11 declares the package's own name as a dependency whose source is the bare URL https://repo.securityctrl.com/calcite-web instead of a registry version range. On npm install, npm fetches whatever tarball that URL returns and installs it with no version pin and no integrity check, executing any lifecycle scripts inside the fetched artifact. The shipped index.js is an inert stub, so the manifest itself is the entire install-time payload, and whoever controls repo.securityctrl.com controls code that runs on every installer. The dependency key equals the package's own name (dependency-confusion shape), and the implausibly high version (45.0.0) is consistent with an override attempting to win resolution against an internal package of the same 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)

91223994e8bb4e46e1b3ca5eea1714a25fedbb828090590110f8c23353c6ec17
4690774d9a334be9f9daa68548e9d07a93b9c5c36f9a61dcd7f131f7a64db447

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for calcite-web (version 45.0.0).

  2. If you installed it — respond

    Remove calcite-web 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 calcite-web 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. calcite-web 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-2026-019082GHSA-fhxc-p24q-34ch

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks calcite-web-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

calcite-web (npm) malicious package — MAL-2026-15499 | O3 Security