---
id: CVE-2026-108683
title: A security vulnerability has been detected in zhayujie CowAgent up to 2.1.9
summary: >-
  A security vulnerability has been detected in zhayujie CowAgent up to 2.1.9.
  The impacted element is an unknown function of the component Media Download
  Handler. Such manipulation leads to uncontrolled memory allocation. It is
  possible t…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-400
  - CWE-789
published: '2026-10-11'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T15:16:52.780'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108683'
references:
  - url: >-
      https://github.com/lche511/cve/tree/main/CowAgent_Channel_Media_Download_DoS_Report
    label: cna@vuldb.com
  - url: 'https://github.com/zhayujie/CowAgent/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/zhayujie/CowAgent/commit/b7967210268fc4c0afea1078223e74e7e96a8a54
    label: cna@vuldb.com
  - url: 'https://github.com/zhayujie/CowAgent/releases/tag/2.2.0'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-108683'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/958015'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/416391'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/416391/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-10-12T14:50:34.054Z'
---

## Overview

A security vulnerability has been detected in zhayujie CowAgent up to 2.1.9. The impacted element is an unknown function of the component Media Download Handler. Such manipulation leads to uncontrolled memory allocation. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.2.0 is sufficient to resolve this issue. The name of the patch is b7967210268fc4c0afea1078223e74e7e96a8a54. You should upgrade the affected component.

## Remediation

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