backupsitetuff6 (npm) · Malicious Code
Affects backupsitetuff6Source GCVE Database
Malicious package : remove backupsitetuff6 and rotate any secrets on hosts that installed it.
Data as of 12 Sep 2026, 17:32 UTC
Malicious package
Published to npm · OSV MAL-2026-10293
What to do
Remove backupsitetuff6 from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmbackupsitetuff6 | Affected– | Fixed in– |
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Description
The npm package 'backupsitetuff6' contains malicious code that abuses the npm registry by mass-publishing nearly 100 misleading package names. It includes a browser Service Worker that serves a heavily obfuscated web proxy frontend with a popunder redirect to an external site. The package does not execute code during installation in Node environments, so the primary harm is registry namespace abuse and browser-side malicious behavior. According to one source, any system with this package installed or running should be considered fully compromised, with immediate secret/key rotation recommended.