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Date: November 4, 2021

The npm package rc had versions published with malicious code. Users of affected versions (1.2.9, 1.3.9, and 2.3.9) should downgrade to 1.2.8 as soon as possible and check their systems for suspicious activity. Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Severity Score

Severity Score

Weakness Type (CWE)



Top Fix


Upgrade Version

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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