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CVE-2026-55157 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:8.4 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/ooples/token-optimizer-mcp/commit/b4ee96dac799cbfba0a9f9c17844ce9d613cbcc7	[email protected]	Source CodeVendor
https://github.com/ooples/token-optimizer-mcp/releases/tag/v5.1.0	[email protected]	Release NotesVendor
https://github.com/ooples/token-optimizer-mcp/security/advisories/GHSA-49mq-fc6q-3h46	[email protected]	AdvisoryExploitRemedyVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-78	Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')	[email protected]

Affected Products

Product	Versions
ooples Token Optimizer MCP	5.0.1 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 5.1.0moderate efforthttps://github.com/ooples/token-optimizer-mcp/releases/tag/v5.1.0

Change History

1 change record found show changes