Critical

Malicious Package in bugfer-xor

  • Disclosed: 03.09.2020
  • Updated: 11.10.2026 10:22

Version 2.0.2 contained malicious code. The package targeted the Ethereum cryptocurrency and performed transactions to wallets not controlled by the user.

Recommendation

Remove the package from your environment. Ensure no Ethereum funds were compromised.

Affected software

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PlatformPackageVulnerable versionsFixed in
npm package bugfer-xor >= 0.0.0 no fix

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-506
Platform
npm
Package
bugfer-xor
Disclosed
03.09.2020
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-8g64-9cm2-838j - CC BY 4.0

Vulnerability history: bugfer-xor

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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