73 Open VSX Sleeper Extensions Linked to GlassWorm Activate New Malware Campaign

The GlassWorm supply chain attack targeting the Open VSX marketplace has escalated with the discovery of 73 new “sleeper” extensions. Identified in April 2026, this cluster marks a dangerous shift in how threat actors distribute malware to software developers. This activity follows a major wave discovered in March 2026, where researchers documented 72 malicious Open […]

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