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CVE-2026-45369

python-utcp: Command Injection via Unsanitized Argument Substitution in CLI Communication Protocol PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
universal-tool-calling-protocol / python-utcpaffected < 1.1.2

CWE

CWE-78

References

ADP enrichment

CISA-ADP

No English description supplied.