What’s Vulnerable › Vulnerabilities

CVE-2026-55071: MCP-for-Stata: Stata Command Injection via Unsanitized `package` in `ado_package_install`

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-21 · updated 2026-09-24
• Weakness: CWE-94

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.

Affected products

• SepineTam mcp-for-stata: before 1.19.0

References

• 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

Get alerted when CVE-2026-55071 or the next vulnerability affects your stack