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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-75mj-4g74-9rg2 Universal Tool Calling Protocol (UTCP) client library for Python vulnerable to Trust Boundary Violation through Manual JSON specification
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 14 Dec 2025 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Utcp
Utcp utcp
Vendors & Products Utcp
Utcp utcp

Sat, 13 Dec 2025 23:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 13 Dec 2025 10:15:00 +0000

Type Values Removed Values Added
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.
Title Command execution in python-utcp allows attackers to achieve remote code execution when fetching a remote Manual from a malicious endpoint
Weaknesses CWE-501
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: JFROG

Published:

Updated: 2025-12-13T22:54:11.290Z

Reserved: 2025-12-11T13:46:59.266Z

Link: CVE-2025-14542

cve-icon Vulnrichment

Updated: 2025-12-13T22:54:08.271Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-13T16:16:51.407

Modified: 2025-12-15T18:22:13.783

Link: CVE-2025-14542

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-14T21:14:43Z

Weaknesses