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Fri, 28 Aug 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mims-harvard
Mims-harvard tooluniverse |
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| Vendors & Products |
Mims-harvard
Mims-harvard tooluniverse |
Thu, 27 Aug 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Thu, 27 Aug 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | ToolUniverse ran caller-supplied Python inside a sandbox that could be escaped, on a server that required no authentication. The executor behind the python_code_executor tool, in python_executor_tool.py, inspected the submitted source for a denied list of attribute names and calls but left the attribute-lookup builtins available and did not stop a dunder attribute reached through a string lookup or through a module already permitted, so a caller could walk from a literal's class to its base and enumerate subclasses to obtain a reference to the process and subprocess modules. A per-call argument also let the caller widen the import allow-list before the inspection ran. The HTTP and MCP servers in http_api_server.py and smcp_server.py bound to every interface with debugging enabled and no authentication, so any caller able to reach the port executed code as the server process. Version 1.3.0 adds bearer-token authentication, defaults the bind address to loopback, and hardens the attribute checks. | |
| Title | ToolUniverse through 1.2.6 Unauthenticated Remote Code Execution via python_code_executor Sandbox Escape | |
| Weaknesses | CWE-94 | |
| References |
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|
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-27T18:13:19.374Z
Reserved: 2026-08-26T16:00:32.344Z
Link: CVE-2026-81096
Updated: 2026-08-27T18:13:11.012Z
Status : Received
Published: 2026-08-27T17:20:51.950
Modified: 2026-08-27T20:18:49.567
Link: CVE-2026-81096
No data.
OpenCVE Enrichment
Updated: 2026-08-28T16:14:32Z