CVE-2025-14542

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Published 2025-12-13. Last modified 2026-06-17.