CDN Tsunami Attack Abuses HTTP/3 Translation for Up to 350x DoS Amplification
Researchers disclosed two DoS attacks exploiting CDNs' HTTP/3-to-HTTP/1.1 translation to amplify low-bandwidth requests up to 350x against origin servers.
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Product
HTTP/3 Bandwidth Amplification
- Mentions · 7d0
- Mentions · 30d0
- All mentions1
- First seenAug 20, 2026
- Last mentionedAug 20, 2026
Timeline
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- Tencentvendor · 1
- Alibabavendor · 1
- CDN Tsunamiproduct · 1
- Fastlyvendor · 1
- Amazon CloudFrontvendor · 1
- Cloudflarevendor · 1
- HTTP/3 Connection Amplificationproduct · 1
- The Hacker Newsorganization · 1
- Baiduvendor · 1
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