GCVE-110-OSM-2026-4715

Advisory PublishedCVSS 8.8/10

Vulnetix · Advisory published May 25, 2026

Suspected dependency confusion attack. Behaviors: data exfiltration, install-time execution. Entrypoint: scripts/install.js (install-hook: node scripts/install.js) Payload: scripts/install.js Key findings: - Install Hook Executes Local JS File in package.json: ""postinstall": "node scripts/install.js"" - Publisher Shows Burner-Account Pattern IOCs: - payloadFileHash: f8d880c16ce02e7ba18b48e1d717983ff85baf4cbb1fbdf2df6d4f3c2cc1f924

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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
unknown	@ironanvil/langchin	all (affected)	—

References

Malicious npm package: @ironanvil/langchin

advisory

vendor

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