---
id: CVE-2026-50025
title: >-
  Mousehole is a background service to update a seedbox IP for MAM and web app
  to manage it
summary: >-
  Mousehole is a background service to update a seedbox IP for MAM and web app
  to manage it. Prior to version 0.4.05, Mousehole's HTTP/WebSocket management
  boundary is reachable without application-layer authentication or browser/LAN
  prove…
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-200
  - CWE-306
  - CWE-346
  - CWE-352
  - CWE-862
vendor: t-mart
product: mousehole
affected:
  - mousehole < 0.4.0
published: '2026-09-11'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T20:16:44.900'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-50025'
references:
  - url: >-
      https://github.com/t-mart/mousehole/blob/master/CHANGELOG.md#v040---2026-06-04
    label: security-advisories@github.com
  - url: >-
      https://github.com/t-mart/mousehole/security/advisories/GHSA-v64r-gfrc-f6vq
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-14T19:59:53.920669Z'
cvssSource: cna
epss: 0.00258
epssPercentile: 0.15572
ingestedAt: '2026-09-14T11:11:19.879Z'
---

## Overview

Mousehole is a background service to update a seedbox IP for MAM and web app to manage it. Prior to version 0.4.05, Mousehole's HTTP/WebSocket management boundary is reachable without application-layer authentication or browser/LAN provenance checks. The service stores a MyAnonamouse (MAM) session cookie in state and reuses the same cookie-bearing serialization for persisted state, public API responses, and WebSocket state updates. Any client that can reach the published Mousehole port can read cookie-bearing state, connect to WebSocket state updates, replace the stored cookie, or force MAM update side effects. The deployment examples publish port 5010 broadly with Docker's `5010:5010` syntax, which can make the issue reachable on mixed-trust LAN/VPN interfaces. Version 0.4.0 patches the issue.

## Remediation

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