Vulnerability-Lookup

GHSA-75MJ-4G74-9RG2

Vulnerability from github – Published: 2025-12-13 18:30 – Updated: 2025-12-15 23:55

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.

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "utcp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-14542"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-501"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-15T23:55:42Z",
    "nvd_published_at": "2025-12-13T16:16:51Z",
    "severity": "HIGH"
  },
  "details": "The vulnerability arises when a client fetches a tools\u2019 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\u2019 trust, a malicious provider can later change the manual to exploit the client.",
  "id": "GHSA-75mj-4g74-9rg2",
  "modified": "2025-12-15T23:55:42Z",
  "published": "2025-12-13T18:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-14542"
    },
    {
      "type": "WEB",
      "url": "https://github.com/universal-tool-calling-protocol/python-utcp/commit/2dc9c02df72cad3770c934959325ec344b441444"
    },
    {
      "type": "WEB",
      "url": "https://github.com/universal-tool-calling-protocol/python-utcp"
    },
    {
      "type": "WEB",
      "url": "https://research.jfrog.com/vulnerabilities/python-utcp-untrusted-manual-command-execution-jfsa-2025-001648329"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Universal Tool Calling Protocol (UTCP) client library for Python vulnerable to Trust Boundary Violation through Manual JSON specification"
}

CVE-2025-14542 (GCVE-0-2025-14542)

Vulnerability from cvelistv5 – Published: 2025-12-13 09:59 – Updated: 2025-12-13 22:54

Title

Command execution in python-utcp allows attackers to achieve remote code execution when fetching a remote Manual from a malicious endpoint

Summary

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-501 - Trust Boundary Violation

Assigner

JFROG

References

URL

Tags

	https://research.jfrog.com/vulnerabilities/python…	third-party-advisory
	https://github.com/universal-tool-calling-protoco…	patch

Impacted products

	Vendor	Product	Version
			Affected: 0 , < 1.1.0 (python)

Show details on NVD website

JSON

To clipboard

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                    "Automatable": "no"
                  },
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                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-13T22:54:03.708584Z",
                "version": "2.0.3"
              },
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      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pypi.org/project/pip",
          "packageName": "utcp",
          "versions": [
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              "lessThan": "1.1.0",
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        }
      ],
      "metrics": [
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          "cvssV3_1": {
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-75MJ-4G74-9RG2

CVE-2025-14542 (GCVE-0-2025-14542)

Tags

Sightings

Nomenclature