multer-express (npm) · Malicious Code
Affects multer-expressSource GCVE Database
Malicious package : remove multer-express and rotate any secrets on hosts that installed it.
Data as of 9 Jul 2026, 09:54 UTC
Malicious package
Published to npm · OSV MAL-2026-6387
What to do
Remove multer-express 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 |
|---|---|---|
| npmmulter-express | Affected
| Fixed in– |
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Description
The npm package 'multer-express' version 2.1.1 is identified as malicious. Although no direct malicious code patterns or install-time hooks were found, the package is considered fully compromising any system where it is installed. Systems with this package should be treated as fully compromised, and all secrets and keys stored on them must be rotated from a separate, secure system. Removal of the package alone does not guarantee elimination of the compromise.