{"id":"CVE-2025-14542","aliases":["GHSA-75mj-4g74-9rg2","PYSEC-2026-2000"],"url":"https://o3.security/vulnerability/CVE-2025-14542","summary":"Command execution in python-utcp allows attackers to achieve remote code execution when fetching a remote Manual from a malicious endpoint","details":"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":"2025-12-13T09:59:41.376Z","modified":"2026-08-13T11:45:12.715541370Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":{"score":0.00256,"percentile":0.16911,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"utcp","fixedVersion":"1.1.0"}],"fix":{"url":"https://github.com/universal-tool-calling-protocol/python-utcp/commit/2dc9c02df72cad3770c934959325ec344b441444","label":"universal-tool-calling-protocol/python-utcp@2dc9c02"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/14xxx/CVE-2025-14542.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-14542"},{"type":"ADVISORY","url":"https://research.jfrog.com/vulnerabilities/python-utcp-untrusted-manual-command-execution-jfsa-2025-001648329/"},{"type":"FIX","url":"https://github.com/universal-tool-calling-protocol/python-utcp/commit/2dc9c02df72cad3770c934959325ec344b441444"},{"type":"PACKAGE","url":"https://pypi.org/project/pip"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-13T11:45:12.715541370Z"}}