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OpenAdvisories
Malicious MAL-2026-16175

csa-mfa

npm package · versions 1.1.15, 1.1.16

Reported Sep 15, 2026 · Updated Sep 16, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (959d2728ff38a804033ca7e07235b3a14bce65bd0e948077ba148a53c6cccff9)
package.json declares a preinstall script that runs wget against http://169.58.142.14:8080/ with query parameters populated by shell command substitution of whoami, ls, and hostname. On npm install this automatically transmits the installer's username, current-directory listing, and hostname to a hardcoded bare-IP HTTP endpoint unrelated to any legitimate publisher infrastructure. There is no functional package purpose served by this behavior.

Source: ossf-package-analysis (a11e3bfb8822762235630fbc44ccd99a2ccd272eba3f16bf242b74c4eb1cdc86)
The OpenSSF Package Analysis project identified 'csa-mfa' @ 1.1.16 (npm) as malicious.

It is considered malicious because:

- The package executes one or more commands associated with malicious behavior.