# MAL-2026-12049: Malicious code in tinkoff-component-infopanel (npm)


- **Type:** Malicious package
- **Package:** `tinkoff-component-infopanel` (npm)
- **Published:** 5 Aug 2026
- **Also known as:** GHSA-9hcg-pq5h-wj74

## What is MAL-2026-12049?

MAL-2026-12049 is a malicious package in tinkoff-component-infopanel, published on 5 Aug 2026. 

### Official description

On require of the package, _platform.js downloads a platform-specific native binary from hardcoded Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT fallback resolved via *.dl.well1.site, writes the bytes to a masqueraded cache path (cover-story names such as dotnet_diag_,.cache_,.analytics_state), chmods 0o755, and spawns it detached via /bin/sh -c or cmd. The destination hostnames are assembled at runtime by joining string fragments (e.g. ["oob-worker.cf10","0-416",".wo","rker","s.dev"].join("")) to evade static matching. No hash or signature verification is performed. The package name impersonates the Tinkoff brand while package.json declares an empty author, no repository, and a README labeling it an 'internal' module. The dropper fires via top-level require() from index.js, so importing this package as a dependency executes the fetched binary on the installer's host.

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-2026-12049?

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

## Fix prompt for AI coding agents

```text
MAL-2026-12049 is a malicious package: tinkoff-component-infopanel (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-2026-12049/ (Markdown: https://insights.sbomify.com/MAL-2026-12049/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12049

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-12049/
Summaries are generated and may contain mistakes; the official description above is the record.