Vulnerability · Published May 15, 2026 · Assigned by GitHub_M
CVE-2026-44717MCP Calculate Server: Prompt Injection to RCE
Critical 9.8
In plain English
A critical-severity code injection in mcp_calculate_server from 611711Dark. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 58.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| 611711Dark | mcp_calculate_server | < 0.1.1 |
Weakness: CWE-94, CWE-1427 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H