Command Injection Affecting utcp-cli package, versions [,1.1.2)


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.01% (4th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Command Injection vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-PYTHON-UTCPCLI-16759107
  • published19 May 2026
  • disclosed14 May 2026
  • credit0XJacks

Introduced: 14 May 2026

NewCVE-2026-45369  (opens in a new tab)
CWE-78  (opens in a new tab)

How to fix?

Upgrade utcp-cli to version 1.1.2 or higher.

Overview

utcp-cli is an UTCP communication protocol plugin for wrapping local command-line tools.

Affected versions of this package are vulnerable to Command Injection via the _substitute_utcp_args function. An attacker can execute arbitrary shell commands by supplying crafted input to the tool_args parameter, which is inserted directly into shell command strings without sanitization or escaping.

CVSS Base Scores

version 4.0
version 3.1