GCVE-110-OSM-2026-4152

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 12, 2026

[osmalyze-auto] Malicious package detected. Behaviors: data exfiltration, code execution, network activity, obfuscated code. [osmalyze-auto] Entrypoint: index.js (main: index.js) Exfil: https://jsonkeeper.com/b/XRGF3 (custom-c2, recovery: decoded in lib/caller.js) Payload: lib/caller.js Key findings: - Stealth Background Process Spawning in index.js: "spawn("node", [script, JSON.stringify(args)], { detached: true, stdio: "..." - Global Variable Shadowing in lib/caller.js: "const process = {" - Fetch and Eval/Exec in lib/caller.js: "axios.get(src, { headers: { [k]: v } })).data.cookie; const handler = new ..." - Decoded Base64 Content in lib/caller.js - Decoded Base64 Content in lib/const.js IOCs: - urls: http://192.168.1.42:9200, https://jsonkeeper.com/b/XRGF3, https://jsonkeeper.com/b/4NAKK - domains: jsonkeeper.com - payloadFileHash: d81e48769a830cd3384a4b8977ade12e5ab7583eb7cca84e7ab966d15871bd71 Decoded/deobfuscated IOCs: - urls: https://jsonkeeper.com/b/XRGF3, https://jsonkeeper.com/b/4NAKK - domains: jsonkeeper.com

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

9.6/10

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

Affected Products

Vendor	Product	Versions	Platforms
unknown	react-next-dom	all (affected), all (affected), all (affected), all (affected)	—

References

Malicious npm package: react-next-dom

advisory

vendor

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