GCVE-110-OSM-2025-26

Advisory PublishedCVSS 8.8/10

Vulnetix · Advisory published November 19, 2025

Malicious code in TretinV3.forts-api-extention (VSCode:https://open-vsx.org) This extension is malicious. When installed it runs an info stealer that exfiltrates user data including credentials and cryptocurrency wallets. The extension also provides remote access and attempts to propagate itself.

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

8.8/10

High · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions	Platforms
Open Source Security Foundation	TretinV3.forts-api-extention	all (affected), all (affected), all (affected), * (affected), all (affected), all (affected), * (affected), all (affected), all (affected), all (affected), all (affected), all (affected), all (affected), all (affected), all (affected), all (affected)	—

Aliases

MAL-2025-191170

References

vendor

Malicious openvsx package: TretinV3.forts-api-extention

advisory

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