MAL-2026-13198 Malicious code in dolyame-ui-types (npm)
Malicious package
Published
MAL-2026-13198 is a malicious package: dolyame-ui-types (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-13198/ (Markdown: https://insights.sbomify.com/MAL-2026-13198/index.md)
- Package
- dolyame-ui-types
- Registry
- npm
What is MAL-2026-13198?
MAL-2026-13198 is a malicious package in dolyame-ui-types, published on 5 Aug 2026.
Official description
On require() of the package, helpers.js downloads a platform-specific binary from hardcoded Cloudflare Workers mirrors (oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev) with DNS-TXT fallback to sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The retrieved bytes are written to a disguised path (.cache<hex> on POSIX, dotnet_diag_<hex>.exe on Windows), chmod'd to 0755, and spawned detached via /bin/sh -c or cmd. Destination hostnames are reconstructed at load time from split-string arrays joined with.join("") to evade static string matching. The package name suggests a type-definitions library, which has no need for outbound network I/O, binary retrieval, or child process execution.
What should I do about MAL-2026-13198?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.