| Titel | zhayujie CowAgent 2.1.3 Denial of Service |
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| Beschreibung | CowAgent 2.1.3 has a denial of service vulnerability in the browser tool workflow.
The browser tool accepts prompt-controlled wait/evaluate operations and runs them through a process-wide shared BrowserService backed by a single Playwright worker thread. When a caller or upstream client times out, the underlying Playwright operation is not cancelled.
An attacker who can influence an agent task through prompt injection can cause the agent to invoke a long browser wait or evaluate operation. This can keep the shared browser thread occupied after the client timeout, causing later normal browser operations to queue and fail within normal deadlines.
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| Quelle | ⚠️ https://github.com/hackerguopeng/cve/tree/main/CowAgent_Browser_Evaluate_Wait_DoS_Report |
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| Benutzer | hackerguopeng (UID 99623) |
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| Einreichung | 09.07.2026 10:50 (vor 2 Monaten) |
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| Moderieren | 01.09.2026 19:56 (2 months later) |
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| Status | Akzeptiert |
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| VulDB Eintrag | 397792 [zhayujie CowAgent bis 2.1.3 Browser Tool browser_tool.py BrowserTool Denial of Service] |
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| Punkte | 20 |
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