MAL-2026-10179 Malicious code in @uwr/colors (npm)
Malicious package
Published
MAL-2026-10179 is a malicious package: @uwr/colors (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-2026-10179/ (Markdown: https://insights.sbomify.com/MAL-2026-10179/index.md)
- Package
- @uwr/colors
- Registry
- npm
What is MAL-2026-10179?
MAL-2026-10179 is a malicious package in @uwr/colors, published on 10 Jul 2026.
Official description
The package's postinstall script reads the installer's machine hostname via os.hostname() and performs a DNS lookup of
<hostname>.0ab1mctv5xigbskwtfusp77dj4pvdx1m.oastify.com, leaking the hostname to a Burp Suite Collaborator subdomain at npm install time without consent. oastify.com is the Burp Collaborator service, commonly used by attackers as an out-of-band data-exfiltration channel. The package's advertised functionality is a trivial 5-entry frozen color constants map under the unscoped-looking @uwr scope ("colors for the unified workflow runtime") with an empty author field, consistent with a dependency-confusion / reconnaissance probe staged against an internal namespace rather than a legitimate library.What should I do about MAL-2026-10179?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.
Sources
Also known as GHSA-8rcq-736v-r8j8.