CVE-2026-84425: Denial of Service in zhayujie CowAgent
Description
A vulnerability was found in zhayujie CowAgent up to 2.1.3. This impacts the function BrowserTool of the file agent/tools/browser/browser_tool.py of the component Browser Tool. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS v4.0
Score 5.3medium
Affected software
zhayujie
CowAgent
cpe:2.3:a:zhayujie:cowagent:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in zhayujie CowAgent up to version 2.1.3 impacts the BrowserTool function of the file agent/tools/browser/browser_tool.py. An attacker can remotely manipulate this function to cause a denial of service condition. The vulnerability does not require user interaction or elevated privileges to exploit. Although the exploit has been publicly disclosed, there is no known patch or vendor response to date.
Potential Impact
Successful exploitation results in denial of service, potentially disrupting the availability of the CowAgent service. The attack can be initiated remotely with low complexity and no privileges, increasing the risk of disruption. No evidence of exploitation in the wild is currently known.
Mitigation Recommendations
No official fix or patch is currently available, and the vendor has not responded to disclosure. Users should monitor vendor channels for updates and consider implementing network-level protections to limit access to the vulnerable component until a patch is released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-01T17:56:15.495Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a976fd9acd9273b4970e688
Added to database: 09/02/2026, 00:37:45 UTC
Last enriched: 09/07/2026, 14:03:48 UTC
Last updated: 10/15/2026, 06:48:19 UTC
Views: 76
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