CVE-2025-14542
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductUtcp
PublishedDec 13, 2025
First seenDec 13, 2025
Weakness typeCWE-501CWE-501
How to fix
Update
- utcp1.1.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| utcpPyPI | v < 1.1.0 | 1.1.0 |
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