CVE-2026-15628 zhayujie chatgpt-on-wechat CowAgent Vision Tool vision.py Vision._download_to_data_url server-side request forgery

[
  {
    "vendor": "zhayujie",
    "product": "chatgpt-on-wechat CowAgent",
    "versions": [
      {
        "version": "2.1.0",
        "status": "affected"
      },
      {
        "version": "2.1.1",
        "status": "affected"
      },
      {
        "version": "2.1.2",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:2.3:a:zhayujie:chatgpt-on-wechat_cowagent:*:*:*:*:*:*:*:*"
    ],
    "modules": [
      "Vision Tool"
    ]
  }
]