Findings

CVE-2025-14542

The vulnerability arises when a client fetches a tools’ JSON specification, known as a Manual, from a remote Manual Endpoint.

Published Dec 13, 2025 · updated Oct 14, 2026

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.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 13, 2025 · NIST NVD

    Detected

    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.

  2. Oct 14, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-14542

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-14542

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2025-14542

    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 ch

    nvd.nist.gov

References