MAL-2026-15529 Malicious code in bui-react-10themes (npm)

Malicious package Published
Package
bui-react-10themes
Registry
npm

What is MAL-2026-15529?

MAL-2026-15529 is a malicious package in bui-react-10themes, published on 28 Aug 2026.

Official description

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.

What should I do about MAL-2026-15529?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

Also known as GHSA-mj9w-ffv9-m8rf.

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