CVE-2026-51856 agentscope - Remote Code Execution

agentscope 1.0.18, 1.0.19 contains a remote code execution caused by unprotected execute_python_code tool exposure in RealtimeAgent session, letting remote WebSocket users execute arbitrary Python code, exploit requires WebSocket access.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
EPSS
0.33% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
30 September 2026
Updated
15 October 2026
Weakness
CWE-94

Vendor fix

Update to the latest version where execute_python_code tool is properly secured or removed.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs