CVE-2026-51856
Critical
Description
In agentscope 1.0.18, 1.0.19, and 1.0.19 when the RealtimeAgent session exposes execute_python_code as an available tool, a remote WebSocket user can prompt the agent to call that tool and run Python code in the service environment. In the validated path, RealtimeAgent._acting forwards the model-produced tool call to Toolkit.call_tool_function, which invokes execute_python_code without an additional approval or isolation boundary on that path.
SeverityCritical
CVSS9.8
Exploit probability—
ProductAgentscope
PublishedSep 30, 2026
First seenSep 30, 2026
Weakness typeCWE-94Code injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| agentscope | 1.0.18 ≤ v ≤ 1.0.19 | — |
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