CVE-2026-44717 PUBLISHED

MCP Calculate Server: Prompt Injection to RCE

Assigner: GitHub_M
Reserved: 07.05.2026 Published: 15.05.2026 Updated: 15.05.2026

MCP Calculate Server is a mathematical calculation service based on MCP protocol and SymPy library. Prior to 0.1.1, the use of eval() to evaluate mathematical expressions without proper input sanitization leads to remote code execution. This vulnerability is fixed in 0.1.1.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	611711Dark
Product	mcp_calculate_server
Versions	Version < 0.1.1 is affected

References

https://github.com/611711Dark/mcp_calculate_server/security/advisories/GHSA-2mgq-7rfg-rwpj

Problem Types

CWE-94: Improper Control of Generation of Code ('Code Injection') CWE
CWE-1427: CWE