React2DoS (CVE-2026-23869): When the Flight Protocol Crashes at Takeoff
ATT&CK techniques detected
T1190Exploit Public-Facing Application
39%
"one of the most used framework in the world and discover a finding with meaningful impact. this wouldn ’ t have been possible if researchers before didn ’ t pave the way with their investigations and their recent findings ( react2shell, cve ‑ 2026 ‑ 23864 … ). disclosure timeline…"
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Summary
Executive Summary In this article, we disclose a new high severity unauthenticated remote denial‑of‑service vulnerability we identified and reported in React Server Components that we’ve dubbed “React2DoS”. In this blog, we’ll analyze its impact and place it in the broader context of recently found Flight protocol vulnerabilities, especially CVE‑2026‑23864. Introduction We are in a phase […]
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