---
id: CVE-2026-50158
title: yutu is an AI-powered toolkit for managing and growing YouTube channels
summary: >-
  yutu is an AI-powered toolkit for managing and growing YouTube channels. Prior
  to 0.10.9, the caption-download MCP tool accepts a caller-controlled file
  parameter through cmd/caption/download.go and passes it to Caption.Download()
  in pkg…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-73
vendor: eat-pray-ai
product: yutu
affected:
  - yutu < 0.10.9-dev1
patched:
  - github.com/eat-pray-ai/yutu 0.10.9-dev1
published: '2026-09-17'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:25:27.050'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-50158'
references:
  - url: >-
      https://github.com/eat-pray-ai/yutu/commit/87026c4eee1ed28775383807087343a750707bf3
    label: security-advisories@github.com
  - url: 'https://github.com/eat-pray-ai/yutu/releases/tag/v0.10.9'
    label: security-advisories@github.com
  - url: >-
      https://github.com/eat-pray-ai/yutu/security/advisories/GHSA-2c7f-fxww-6w6c
    label: security-advisories@github.com
  - url: 'https://github.com/eat-pray-ai/yutu/releases/tag/v0.10.9-dev1'
  - url: 'https://github.com/advisories/GHSA-2c7f-fxww-6w6c'
tags:
  - nvd
  - cve.org
  - ghsa
  - go
epss: 0.00229
epssPercentile: 0.12161
aliases:
  - GHSA-2c7f-fxww-6w6c
ecosystem: go
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-18T14:36:51.411615Z'
ingestedAt: '2026-07-14T19:38:53.154Z'
---

## Overview

yutu is an AI-powered toolkit for managing and growing YouTube channels. Prior to 0.10.9, the caption-download MCP tool accepts a caller-controlled file parameter through cmd/caption/download.go and passes it to Caption.Download() in pkg/caption/caption.go, where os.Create() creates or truncates that path without using the pkg.Root confinement boundary backed by YUTU_ROOT. A principal able to invoke caption-download, including a local HTTP client when the MCP server runs with its default authentication-disabled configuration, can write downloaded caption bytes to any path writable by the yutu process outside YUTU_ROOT. This can overwrite application files, configuration, shell startup files, logs, or data and can cause persistent code execution or denial of service depending on the selected writable target. Live caption retrieval also requires usable service credentials and an accessible caption identifier. This issue is fixed in version 0.10.9.

## Remediation

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

## Package advisory (CVE-2026-50158)

Affected packages:

- `github.com/eat-pray-ai/yutu < 0.10.9-dev1`

Patched in:

- `github.com/eat-pray-ai/yutu 0.10.9-dev1`

Source: https://github.com/advisories/GHSA-2c7f-fxww-6w6c