MalwarePublished 29 Jun 2026

magwien.sys (npm) · Malicious Code

Affects magwien.sysSource GCVE Database

Malicious package : remove magwien.sys and rotate any secrets on hosts that installed it.

Data as of 29 Jun 2026, 22:26 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-6666

What to do

Remove magwien.sys 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
npmmagwien.sys	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 magwien.sys contains malicious code that compromises any computer on which it is installed or running. The compromise is severe enough that all secrets and keys stored on the affected system should be rotated immediately from a different, trusted computer. Removing the package alone does not guarantee full remediation, as the attacker may have established persistent control over the system.

Impact

Complete system compromise on any computer with the magwien.sys package installed or running. All stored secrets and keys on the compromised system are at risk of exposure or theft. The attacker may maintain persistent access even after package removal, leading to ongoing security risks.

Defensive guidance

Remove the magwien.sys package from affected systems. Immediately rotate all secrets and keys stored on the compromised computer from a different, secure machine. Because full control may have been granted to an attacker, consider rebuilding or thoroughly cleaning the affected system to ensure removal of all malicious components.

Summary

The npm package magwien.sys is identified as containing malicious code that fully compromises affected computers. Installation or execution of this package grants an attacker potential full control over the system, risking exposure of all stored secrets and keys. Due to the depth of compromise, simple removal of the package may not eliminate all malicious components or backdoors introduced. Immediate secret/key rotation from a separate secure environment is strongly advised to mitigate ongoing risk.

References

github.com/advisories/GHSA-7rgq-99ww-vfgr (opens in a new tab)

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What to do

Affected software

Description

AI analysisMachine-generated, updated 29 Jun 2026, 22:26 UTC

Technical details

References

Community reviews