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CVE-2026-55157

CVE-2026-55157 · Token Optimizer MCP: OS command injection in smart_user via username in get-user-info

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Token Optimizer MCP measures token savings per AI coding agent, optimizes context, and shares a live local knowledge graph across 16 CLI clients. Prior to version 5.1.0, token-optimizer-mcp is vulnerable to OS command injection in the smart_user tool. Any MCP client that can call the smart_user tool can execute arbitrary shell commands through the username argument of the get-user-info operation. The commands execute with the privileges of the user running the token-optimizer-mcp server. This issue has been patched in version 5.1.0.

CVSS 8.4 · Élevée · EPSS 0,9% · Correctif disponible

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