CVE-2026-41399 in OpenClaw

Sumário

de MITRE • 28/04/2026

OpenClaw before 2026.3.28 accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. Unauthenticated network attackers can exhaust socket and worker capacity to disrupt WebSocket availability for legitimate clients.

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• Responsável: VulnCheck
• Reservar: 20/04/2026
• Divulgação: 28/04/2026
• Moderação: aceite
• Entrada: VDB-360039
• CPE: pronto
• CWE: CWE-770 (confirmado)
• CVSS: 7.5 (CNA)
• EPSS: 0.00102
• KEV: não
• Atividades: muito baixo
• Sector: Hospital, Energy, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-41399
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41399
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-41399/