---
id: CVE-2026-101061
title: >-
  utcp-gql before 1.1.1 and utcp-websocket before 1.1.1 contain server-side
  request forgery vulnerabilities due to incomplete application of
  CVE-2026-44661 fixes
summary: >-
  utcp-gql before 1.1.1 and utcp-websocket before 1.1.1 contain server-side
  request forgery vulnerabilities due to incomplete application of
  CVE-2026-44661 fixes. The GraphQL plugin uses a vulnerable prefix check
  allowing bypass URLs like …
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-918
vendor: universal-tool-calling-protocol
product: python-utcp
affected:
  - python-utcp < 1.1.1
  - python-utcp < 1.1.1
published: '2026-09-27'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T17:32:07.107'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101061'
references:
  - url: >-
      https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-ppx3-28rw-8fpf
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/utcp-gql-and-utcp-websocket-before-1.1.1-ssrf-via-url-validation-bypass
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-ppx3-28rw-8fpf
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00244
epssPercentile: 0.15463
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T14:14:21.739047Z'
ingestedAt: '2026-09-27T17:56:02.208Z'
---

## Overview

utcp-gql before 1.1.1 and utcp-websocket before 1.1.1 contain server-side request forgery vulnerabilities due to incomplete application of CVE-2026-44661 fixes. The GraphQL plugin uses a vulnerable prefix check allowing bypass URLs like http://127.0.0.1.attacker.example, while the WebSocket plugin performs no URL validation despite documented security requirements. Attackers can force connections to internal services and cloud metadata endpoints by supplying malicious tool URLs in call templates, and receive configured API keys and OAuth tokens sent to attacker-controlled hosts.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.