nottuff23 (npm) · Malicious Code
Affects nottuff23Source GCVE Database
Malicious package : remove nottuff23 and rotate any secrets on hosts that installed it.
Data as of 26 Oct 2026, 15:56 UTC
Malicious package
Published to npm · OSV MAL-2026-5915
What to do
Remove nottuff23 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 |
|---|---|---|
| npmnottuff23 | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
The npm package 'nottuff23' version 1.7.7 is part of a bulk-published set of malicious packages that abuse the npm registry namespace. The package contains obfuscated browser service worker code and assets that do not function as a Node.js library. While installation and requiring the package do not execute code, the package is designed for registry spam and potentially malicious use at deployment. The package's payload includes a dormant web-proxy frontend and loads remote scripts from suspicious domains. Any system with this package installed should be considered compromised, and all secrets should be rotated.