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MSC-2026-6398
Published:June 08, 2026
Updated:July 31, 2026
Malicious PyPI package distributed under metadata resembling a legitimate 3D reconstruction library. The wheel contains no functional code, only a bundled credential-harvesting module and two execution triggers - an import-time hook and a site-packages .pth entry - either of which runs the payload. Harvested data is compressed and uploaded to an external collector.
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CVSS v4
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
9.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Inclusion of Functionality from Untrusted Control Sphere
Insufficiently Protected Credentials
Embedded Malicious Code
Exposure of Sensitive Information to an Unauthorized Actor