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Malicious package

bui-react-10themesnpm

Advisory published Updated

bui-react-10themes is a confirmed malicious npm package (MAL-2026-15529) 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 bui-react-10themes (npm)

MAL-2026-15529
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall bui-react-10themes

What this malware does

package.json declares a dependency whose key equals this package's own name (bui-react-10themes) and whose value is a bare HTTPS URL (https://repo.securityctrl.com/bui-react-10themes) rather than a registry version range. There is no version pin and no integrity hash. On npm install, npm fetches whatever tarball is served from repo.securityctrl.com and installs it, executing any lifecycle scripts it contains. The shipped in-tree code is an inert stub, so the manifest edge is the entire installed surface. The self-name pattern (dependency confusion shape) combined with the implausibly high 45.0.0 version is consistent with an attempt 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)

0a333445d0f8345bc824161bcc7f6487a59ba9f1f7a852da2643eb7c27dd849b
fcb992abf3b9d7758d2323d10aceeb9a2779e85b09cc7640930df9a8e43094c3

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for bui-react-10themes (version 45.0.0).

  2. If you installed it — respond

    Remove bui-react-10themes 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 bui-react-10themes 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. bui-react-10themes 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-2026-019098GHSA-mj9w-ffv9-m8rf

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks bui-react-10themes-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

bui-react-10themes (npm) malicious package — MAL-2026-15529 | O3 Security