{"cve":"CVE-2025-14542","nvd":{"published":"2025-12-13T16:16:51.407","modified":"2026-10-14T13:10:00.187","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.5},"cwes":["CWE-501"],"references":["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/"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:17:07.138532058+00:00"},"epss":{"cve":"CVE-2025-14542","score":0.00264,"percentile":0.18177,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-75mj-4g74-9rg2","url":"https://osv.dev/vulnerability/GHSA-75mj-4g74-9rg2","summary":"Universal Tool Calling Protocol (UTCP) client library for Python vulnerable to Trust Boundary Violation through Manual JSON specification","modified":"2026-07-07T17:56:39.853999638Z","packages":[{"ecosystem":"PyPI","name":"utcp","purl":"pkg:pypi/utcp","ranges":["<1.1.0"],"fixed":["1.1.0"]}]},{"id":"PYSEC-2026-2000","url":"https://osv.dev/vulnerability/PYSEC-2026-2000","summary":"Universal Tool Calling Protocol (UTCP) client library for Python vulnerable to Trust Boundary Violation through Manual JSON specification","modified":"2026-07-07T17:47:54.161359607Z","packages":[{"ecosystem":"PyPI","name":"utcp","purl":"pkg:pypi/utcp","ranges":["<1.1.0"],"fixed":["1.1.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}