GHSA-75mj-4g74-9rg2

Suggest an improvement
Source
https://github.com/advisories/GHSA-75mj-4g74-9rg2
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-75mj-4g74-9rg2/GHSA-75mj-4g74-9rg2.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-75mj-4g74-9rg2
Aliases
Published
2025-12-13T18:30:21Z
Modified
2025-12-16T00:11:17.727067Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Universal Tool Calling Protocol (UTCP) client library for Python vulnerable to Trust Boundary Violation through Manual JSON specification
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.

Database specific 
{
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-501"
    ],
    "nvd_published_at": "2025-12-13T16:16:51Z",
    "github_reviewed_at": "2025-12-15T23:55:42Z",
    "severity": "HIGH"
}
References

Affected packages

PyPI / utcp

Package

Name
utcp
View open source insights on deps.dev
Purl
pkg:pypi/utcp

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.0

Affected versions

0.*
0.1.0
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.1.7
0.1.8
0.2.0
0.2.1
0.2.2
0.2.3
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-75mj-4g74-9rg2/GHSA-75mj-4g74-9rg2.json"