universal-tool-calling-protocol/python-utcp · Security
Universal Tool Calling Protocol (UTCP) client library for Python vulnerable to Trust Boundary Violation through Manual JSON specification
- GHSA ID
- GHSA-75mj-4g74-9rg2
- CVE ID
- CVE-2025-14542
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
CWEs
- CWE-501 · Trust Boundary Violation
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-14542 ↗
- https://github.com/universal-tool-calling-protocol/python-utcp/commit/2dc9c02df72cad3770c934959325ec344b441444 ↗
- https://research.jfrog.com/vulnerabilities/python-utcp-untrusted-manual-command-execution-jfsa-2025-001648329 ↗
- https://github.com/advisories/GHSA-75mj-4g74-9rg2 ↗