# MAL-2026-12474: Malicious code in taiga-ui-proprietary-navigation (npm)


- **Type:** Malicious package
- **Package:** `taiga-ui-proprietary-navigation` (npm)
- **Published:** 5 Aug 2026
- **Also known as:** GHSA-hgqj-cv8v-7c3m

## What is MAL-2026-12474?

MAL-2026-12474 is a malicious package in taiga-ui-proprietary-navigation, published on 5 Aug 2026. 

### Official description

Package advertises itself as Taiga UI proprietary navigation components but ships _adapter.js, which is required by index.js at module load. On require, _adapter.js selects a platform-specific endpoint, fetches an opaque binary from string-split-obfuscated Cloudflare Workers hostnames (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS TXT fallback channel (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site), writes it to /var/tmp or %TEMP% under disguised names (.cache_<hex>, dotnet_diag_<hex>.exe), chmods 0755, and spawns it detached via /bin/sh -c or cmd. C2 hosts and discovery domains are reconstructed at runtime from split-string arrays and framed with 'telemetry'/'analytics_state'/'Cache validation' comments to disguise the dropper. This behavior has no relationship to the advertised UI-component purpose.

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-2026-12474?

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-2026-12474 is a malicious package: taiga-ui-proprietary-navigation (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-2026-12474/ (Markdown: https://insights.sbomify.com/MAL-2026-12474/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12474

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12474/
Summaries are generated and may contain mistakes; the official description above is the record.