GCVE-110-OSM-2026-2650

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published April 17, 2026

Malicious package detected. Behaviors: data exfiltration, code execution, network activity, obfuscated code. Payload: dist/prompts.js Secondary files: dist/resources.js Key findings: - Environment Variable Exfiltration in dist/index.js: "process.env.PORT || "3000", 10); const httpServer = createHttpServer(async (..." - Sensitive File Access in dist/prompts.js: ""/etc/passwd"" - OAST/Interactsh Exfiltration in dist/prompts.js: "burpcollaborator.net" - Sensitive File Access in dist/resources.js: "'/etc/passwd'" - OAST/Interactsh Exfiltration in dist/resources.js: ".oast.fun" IOCs: - ipv4: 1.1.1.1, 51.158.147.132 - ipv6: 0000:0000:0000:0000:0000:0000:0000:0001, 0:0:0:0:0:0:0:1 - urls: https://www.typescriptlang.org/, https://badge.mcpx.dev?type=server&features=tools, https://smithery.ai/badge/operant-mcp, https://smithery.ai/server/operant-mcp, https://insiders.vscode.dev/redirect/mcp/install?name=operant-mcp&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIm9wZXJhbnQtbWNwIl19 (+45 more) - domains: www.typescriptlang.org, badge.mcpx.dev, insiders.vscode.dev, cursor.com, attacker.com (+36 more) - emails: attacker@evil.com, allowed-domain@attacker.com, allowed-domain%252F@attacker.com, user@company.com.attacker.com, %00@attacker.com (+6 more) - payloadFileHash: 2af553586ee75c11d93122ff233544f4aed170e7fa0a00b4920ecf08b6fd914c

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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	@iflow-mcp/operantlabs-operant-mcp	* (affected)	—

References

Malicious npm package: @iflow-mcp/operantlabs-operant-mcp

advisory

vendor

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