---
id: CVE-2026-7404
aliases:
  - GHSA-3jmq-qhg3-f58j
  - PYSEC-2026-2632
title: mcpo-simple-server has a Path Traversal issue
summary: mcpo-simple-server has a Path Traversal issue
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
vendor: mcpo-simple-server
product: mcpo-simple-server
ecosystem: pip
affected:
  - mcpo-simple-server <= 0.2.0
published: '2026-04-29'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-3jmq-qhg3-f58j'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-7404'
  - url: 'https://github.com/getsimpletool/mcpo-simple-server/issues/4'
  - url: 'https://github.com/getsimpletool/mcpo-simple-server'
  - url: 'https://vuldb.com/submit/803612'
  - url: 'https://vuldb.com/vuln/360140'
  - url: 'https://vuldb.com/vuln/360140/cti'
tags:
  - osv
  - pip
epss: 0.00512
epssPercentile: 0.42674
ingestedAt: '2026-07-13T18:57:51.931Z'
---

## Overview

A weakness has been identified in getsimpletool mcpo-simple-server up to 0.2.0. Affected is the function delete_shared_prompt of the file src/mcpo_simple_server/services/prompt_manager/base_manager.py. This manipulation of the argument detail causes relative path traversal. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

## Affected packages

- `mcpo-simple-server <= 0.2.0`

## Remediation

Refer to the advisory for the patched release.