CVE-2026-84425
zhayujie CowAgent Browser Tool browser_tool.py BrowserTool denial of service
- State
- Published
- Severity
- 5.3 Medium
- Published
- Sep 2, 2026
- Updated
- Sep 2, 2026
- Reserved
- Sep 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 4.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.0 Medium | AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-404 Denial of Service
Affected Products
| Product | Versions |
|---|---|
CowAgentzhayujie |
|
References
- VDB-397792 | zhayujie CowAgent Browser Tool browser_tool.py BrowserTool denial of servicevdb-entrytechnical-description
- VDB-397792 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-84425 | CVE Analysis and Reportthird-party-advisory
- Submit #884017 | zhayujie CowAgent 2.1.3 Denial of Servicethird-party-advisory
- https://github.com/hackerguopeng/cve/tree/main/CowAgent_Browser_Evaluate_Wait_DoS_Reportexploit
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