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Vulnerability record · CVE-2026-55071 · published 21 September 2026

CVE-2026-55071: Code injection vulnerability

MCP-for-Stata is a MCP server for integrating Stata into agent loops with a safety-first design. Prior to version 1.19.0, the ado_package_install MCP tool in stata-mcp concatenates user-controlled input directly into a Stata command string without any validation or sanitization. An attacker who can invoke the MCP tool or the equivalent Python API can embed newline characters in the package argument to inject arbitrary Stata commands. Because Stata supports a shell escape command, this leads to full OS-level arbitrary command execution (RCE) under the account running the Stata-MCP server. The tool is registered in the default all profile, so no non-default configuration is required. This issue has been patched in version 1.19.0.

8.4 CVSS 3.1 High EPSS 0.25% · top 85.0% CWE-94 · Code injection Awaiting Analysis
8.4CVSS 3.1 base score
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
24 Sep 2026Last modified by NVD

Description

MCP-for-Stata is a MCP server for integrating Stata into agent loops with a safety-first design. Prior to version 1.19.0, the ado_package_install MCP tool in stata-mcp concatenates user-controlled input directly into a Stata command string without any validation or sanitization. An attacker who can invoke the MCP tool or the equivalent Python API can embed newline characters in the package argument to inject arbitrary Stata commands. Because Stata supports a shell escape command, this leads to full OS-level arbitrary command execution (RCE) under the account running the Stata-MCP server. The tool is registered in the default all profile, so no non-default configuration is required. This issue has been patched in version 1.19.0.

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://github.com/SepineTam/mcp-for-stata/releases/tag/v1.19.0
https://github.com/SepineTam/mcp-for-stata/security/advisories/GHSA-49m4-vp58-wgc9
https://github.com/SepineTam/mcp-for-stata/security/advisories/GHSA-49m4-vp58-wgc9

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Source: NIST National Vulnerability Database (record CVE-2026-55071), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.