MAL-2026-12917 Malicious code in bnpl-blocks-desktop-bnpl-card-panel (npm)
Malicious package
Published
MAL-2026-12917 is a malicious package: bnpl-blocks-desktop-bnpl-card-panel (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-2026-12917/ (Markdown: https://insights.sbomify.com/MAL-2026-12917/index.md)
- Package
- bnpl-blocks-desktop-bnpl-card-panel
- Registry
- npm
What is MAL-2026-12917?
MAL-2026-12917 is a malicious package in bnpl-blocks-desktop-bnpl-card-panel, published on 5 Aug 2026.
Official description
On require, index.js loads polyfill.js which selects a platform-specific payload path, downloads bytes over HTTPS from string-split-obfuscated Cloudflare workers.dev hostnames (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev) with a DNS-TXT chunked base64 fallback over sdk.dl.wel1.ru, writes the bytes to a temp file under a decoy name (dotnet_diag.exe /.cache_), chmods it 0755, and spawns it detached via cmd.exe or /bin/sh. There is no version pin, no hash check, and no signature verification. Destination hostnames are assembled by concatenating string fragments (e.g. ["oob-worker.cf101-adf.workers.","de","v"].join("")) and a DNS-TXT covert-channel fallback (resolveTxt("c."+domain) + base64 decode) is implemented to survive HTTPS egress blocking. The child_process spawn of a downloaded binary confirms code execution, not telemetry.
What should I do about MAL-2026-12917?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.