CVE-2026-84425zhayujie CowAgent Browser Tool browser_tool.py BrowserTool denial of service
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 4.3 MEDIUM (v3.1, CNA)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
- Weakness (CWE)
- CWE-404
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
zhayujie CowAgent zhayujie:cowagent | 2.1.0; 2.1.1; 2.1.2; 2.1.3 | CNA record |
References
- https://vuldb.com/vuln/397792vdb-entry, technical-description
- https://vuldb.com/vuln/397792/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-84425third-party-advisory
- https://vuldb.com/submit/884017third-party-advisory
- https://github.com/hackerguopeng/cve/tree/main/CowAgent_Browser_Evaluate_Wait_DoS_Reportexploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.