PYSEC-2026-2000 Universal Tool Calling Protocol (UTCP) client library for Python vulnerable to Trust Boundary Violation through Manual JSON specification

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...

CVE-2026-12210: Server-Side Request Forgery (SSRF)

A vulnerability was detected in universal-tool-calling-protocol python-utcp 1.1.0. This affects an unknown function of the component utcp-gql/utcp-websocket. Performing a manipulation results in server-side request forgery. The attack can be initiated remotely. The exploit is now public and may b...

PT-2026-82005

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-ppx3-28rw-8fpf. This link is maintained to preserve external references. Original Description A vulnerability was detected in universal-tool-calling-protocol python-utcp 1.1.0. This affects an unknown function o...