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CVE-2026-59176 is a high-severity improper inclusion of functionality from an untrusted control sphere vulnerability in functype-mcp-server before version 1.4.4. The set_functype_version MCP tool accepts an unsanitized pnpm package-specifier as a version value, installs the resulting package under the functype alias, and dynamically imports its CLI module. An attacker can supply an alias, local-path, or remote package specifier that causes attacker-controlled package content to be imported and executed by the MCP server process.
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No public exploit code observed for this vulnerability.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
High-severity vulnerability affecting functype-mcp-server and related packages prior to version 1.4.4. The supplied CVSS v3 vector indicates local attack access, no privileges required, and user interaction required, with high confidentiality, integrity, and availability impact.
A high-severity remote code execution vulnerability in functype-mcp-server caused by unsanitized package-version input to pnpm and a subsequent dynamic import of the newly installed package. An unauthenticated MCP client able to invoke set_functype_version can execute arbitrary JavaScript with the MCP server process's privileges.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.