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Background for this topic.
Cloudflare operates a global content delivery and security network that sits between internet users and websites or services. It provides distributed denial-of-service (DDoS) mitigation, web application firewall (WAF) capabilities, and secure DNS resolution, helping to filter malicious traffic and improve site availability. By proxying traffic through its edge servers, Cloudflare can inspect, block, or rate-limit requests based on threat intelligence and configured security policies.
From an information security perspective, Cloudflare’s platform introduces critical considerations around trust and attack surface. Organizations relying on it must monitor for vulnerabilities in its software stack and configuration errors that could expose sensitive data or allow bypass of protections. Additionally, Cloudflare’s role as a traffic intermediary means that any compromise or misconfiguration could impact confidentiality and integrity of data in transit, making careful management of encryption and access controls essential.
Security community needs to rally and share more info faster, one researcher says Amid new reports of attackers pummeling a maximum security hole (CVE-2025-55182) in the React JavaScript library, Cloudflare's technology chief said his company took down its own network, forcing a widespread outage early Friday, to patch React2Shell.…
Outage Briefly Took Down Zoom, LinkedIn and Other WebsitesContent delivery network giant Cloudflare is investigating a brief outage early Friday that took down multiple websites. The incident marks the second outage in the span of a month, although the causes are unrelated. It stemmed from how Cloudflare's web application firewall parses requests.
Cloudflare has blamed today's outage on the emergency patching of a critical React remote code execution vulnerability, which is now actively exploited in attacks. [...]
Cloudflare is down, as websites are crashing with a 500 Internal Server Error. Cloudflare is investigating the reports. [...]
Cloudflare data shows 29.7 Tbps record-breaker landed amid 87% surge in network-layer attacks The internet has spent the past three months ducking for cover as the Aisuru botnet hurled record-shattering DDoS barrages from an army of up to 4 million infected machines.…
Cloudflare on Wednesday said it detected and mitigated the largest ever distributed denial-of-service (DDoS) attack that measured at 29.7 terabits per second (Tbps)