CVE-2025-14542 Details
Description
The vulnerability arises when a client fetches a tools’ JSON specification, known as a Manual, from a remote Manual Endpoint. While a provider may initially serve a benign manual (e.g., one defining an HTTP tool call), earning the clients’ trust, a malicious provider can later change the manual to exploit the client.
A vulnerability in python-utcp allows for arbitrary operating system command execution on a client's machine. This occurs when the client retrieves a tool's JSON specification, referred to as a 'Manual', from a remote Manual Endpoint. A provider can initially send a harmless manual, but later modify it to exploit the client. If the 'utcp-cli' package is installed, a malicious provider can execute commands by defining a tool in the manual that uses the CLI protocol. Even without 'utcp-cli', other protocols like HTTP can be manipulated to perform Server-Side Request Forgery (SSRF) attacks.
Users can update to python-utcp version 1.1.0, which addresses this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Dec 13, 2025CISA-ADP
Assessed Dec 13, 2025References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-501 | Trust Boundary Violation | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| python-utcp | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Dec 13, 2025 | New CVE Received | [email protected] |