MSC-2026-11439
Published:August 25, 2026
Updated:August 25, 2026
Purpose-built dependency-confusion artifact published under an internal-style package name at version 99.0.0. Both preinstall and postinstall execute a bundled beacon that collects the build host's hostname, username and current working directory and transmits them off-host over two independent channels; the module itself exports nothing. Self-described as authorized research, but the collection and transmission are unauthorized in any consuming build.
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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