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vulnerabilities
CDN Tsunami Attack Abuses HTTP/3 Translation for Up to 350x DoS Amplification
Researchers disclosed two denial-of-service attacks called CDN Tsunami that exploit how major content delivery networks translate HTTP/3 traffic into HTTP/1.1 requests to origin servers, amplifying attacks by up to 350 times. The vulnerabilities affect multiple large CDN providers including Alibaba and Baidu.
Why it matters: Organizations relying on these CDNs for origin protection face significant amplification risk in their infrastructure; practitioners should review CDN configurations and coordinate with providers on mitigations.
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- First seen by Cybersecurity Tracker