Cloudflare Outage Caused by React2Shell Mitigations

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Cloudflare Outage Caused by React2Shell Mitigations

Feeds.Feedburner •Eduard Kovacs • December 5, 2025

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The critical React vulnerability has been exploited in the wild by Chinese and other threat actors.

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Cloudflare Outage Linked to React2Shell Vulnerability Mitigations A recent outage at Cloudflare was caused by the deployment of emergency patches for the React2Shell vulnerability. This critical vulnerability has been actively exploited by various threat actors, including those from China. The situation highlights the ongoing risks associated with the React framework. 4 sources 53

Extracted Entities

Attack Types (1)

Zero-day Exploit

Companies (1)

Malware (1)

Platforms (1)