CVE-2026-55157

HIGHCVSS 8.41% EPSS

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.

Published 2026-09-28 · last modified 2026-09-28

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.