MAL-2026-13590 Malicious code in dolyame-ui-noindex (npm)
Malicious package
Published
MAL-2026-13590 is a malicious package: dolyame-ui-noindex (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-2026-13590/ (Markdown: https://insights.sbomify.com/MAL-2026-13590/index.md)
- Package
- dolyame-ui-noindex
- Registry
- npm
What is MAL-2026-13590?
MAL-2026-13590 is a malicious package in dolyame-ui-noindex, published on 7 Aug 2026.
Official description
On require(), index.js loads./ext which selects a platform-specific payload (linux_x64/arm64, darwin, win32), downloads an unsigned binary over HTTPS from Cloudflare workers.dev and dl.wel1.ru hosts whose names are reconstructed from split string arrays, writes it to /tmp or the Windows temp directory under a disguised name (a hidden.cache<hex> file or a dotnet_diag_<hex>.exe lookalike), chmods it 0755, and spawns it detached via /bin/sh -c or cmd. A DNS-TXT-based fallback channel reassembles base64 payload chunks from numbered subdomains of ext.dl.wel1.ru / sdk.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru when HTTPS is blocked. The same drop-and-exec routine is duplicated in lib/telemetry.js, where the child_process require is also split-string obfuscated. The package name resembles a legitimate UI library but the shipped code contains no such library — its only import-time effect is to fetch and execute an opaque remote binary.
What should I do about MAL-2026-13590?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.