CVE-2026-44717 MCP Calculate Server: Prompt Injection to RCE
Attackers can execute arbitrary code via prompt injection in the MCP Calculate Server due to unsafe eval usage.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-44717?
CVE-2026-44717 is a critical code injection vulnerability in 611711Dark mcp_calculate_server, published on 15 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Which versions are affected by CVE-2026-44717?
How do I fix CVE-2026-44717?
No fix has been published for CVE-2026-44717 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-44717 being exploited?
There is no known exploitation of CVE-2026-44717 in the wild and no public exploit code.