CVE-2025-14542: Universal Tool Calling Protocol (UTCP) client library for Python vulnerable to Trust Boundary Violation through Manual JSON specification
(updated )
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.
References
- github.com/advisories/GHSA-75mj-4g74-9rg2
- github.com/universal-tool-calling-protocol/python-utcp
- github.com/universal-tool-calling-protocol/python-utcp/commit/2dc9c02df72cad3770c934959325ec344b441444
- nvd.nist.gov/vuln/detail/CVE-2025-14542
- research.jfrog.com/vulnerabilities/python-utcp-untrusted-manual-command-execution-jfsa-2025-001648329
Code Behaviors & Features
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