MSC-2026-6277
Published:July 07, 2026
Updated:July 07, 2026
Coordinated typosquatting campaign impersonating Paysafe, Skrill, and Neteller payment SDKs across npm (13 packages, v1.0.0-1.0.3) and PyPI (4 packages, v1.0.0). Each package presents a fake SDK facade that returns fake success responses while exfiltrating environment variables matching KEY/SECRET/TOKEN/PASS/AUTH/API patterns to a C2 at caliber-spinner-finishing.ngrok-free.dev.
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Contact UsCVSS 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)
Embedded Malicious Code