CVE-2026-45369
High
Description
python-utcp is the python implementation of UTCP. Prior to 1.1.3, the _substitute_utcp_args method in cli_communication_protocol.py inserts user-controlled tool_args values directly into shell command strings without any sanitization or escaping. These commands are then executed via /bin/bash -c (Unix) or powershell.exe -Command (Windows), allowing an attacker to inject arbitrary shell commands. This vulnerability is fixed in 1.1.3.
SeverityHigh
CVSS8.3
Exploit probability—
ProductUtcp-cli
PublishedMay 14, 2026
First seenMay 14, 2026
Weakness typeCWE-78OS command injection
How to fix
Update
- utcp-cli1.1.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| utcp-cliPyPI | v < 1.1.2 | 1.1.2 |
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