GCVE-110-OSM-2026-3040

Advisory PublishedCVSS 5.4/10

Vulnetix · Advisory published April 23, 2026

Bug bounty dependency confusion attempt. Package exfiltrates basic system information (hostname, IP, DNS) to security research infrastructure. Behaviors: data exfiltration, code execution, network activity, obfuscated code, install-time execution. Payload: src/setup.js Secondary files: src/phases/exploit-engine.js Key findings: - OAST/Interactsh Exfiltration in src/phases/exploit-engine.js: "burpcollaborator.net" - Stealth Background Process Spawning in src/setup.js: "spawn('ollama', ['serve'], { detached: true, stdio: 'ignore', ..." - Download Execute Delete Pattern in src/setup.js: "execSync(`"${installerPath}" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART`, { st..." - Shell Command Execution in bin/nerv.js: "execSync(" - Shell Command Execution in src/phases/analyzer.js: "os.system(" IOCs: - ipv4: 131.0.0.0 - urls: https://ollama.com, http://169.254.169.254/latest/meta-data/, https://nerv-security.local, http://target/api, http://[::1 (+10 more) - domains: ollama.com, securityheaders.com, doubleclick.net, optimizely.com, newrelic.com (+8 more) - emails: test@nerv-security.local - oastEndpoints: http://spoofed.burpcollaborator.net/ - payloadFileHash: 94bc2c77e84d2f07e149587ae8901cf750a2632e695c2120eb3526a910361f84

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

5.4/10

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

Affected Products

Vendor	Product	Versions	Platforms
unknown	nerv-viper	* (affected)	—

References

Malicious npm package: nerv-viper

advisory

vendor

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