MSC-2026-6423
Published:August 04, 2026
Updated:August 04, 2026
Dependency-confusion PoC stage of the internallib_v688 malicious package (npm-removed). Ships GitLab-CI template doing 'npm update --registry http://0.0.0.0:4873/' (non-canonical registry beacon) + self-require. Sibling versions 1.0.2/1.0.3 escalate to a reverse shell.
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Contact UsCVSS v4
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH
Exploit Maturity
HIGH
Weakness Type (CWE)
Embedded Malicious Code