streak-daybucket (npm) · Malicious Code
Affects streak-daybucketSource GCVE Database
Malicious package : remove streak-daybucket and rotate any secrets on hosts that installed it.
Data as of 26 Oct 2026, 16:15 UTC
Malicious package
Published to npm · OSV MAL-2026-12464
What to do
Remove streak-daybucket 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 |
|---|---|---|
| npmstreak-daybucket | Affected
| Fixed in– |
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Description
The npm package streak-daybucket@1.0.0 contains malicious code that embeds a hex-encoded Windows executable. Upon loading the module, this executable is decoded and written to the current user's Windows Startup folder, causing it to run automatically on the next login. This behavior establishes persistent code execution on the affected system. The malicious payload is obfuscated by splitting hex arrays and disguising the package as a legitimate math utility.