Inconsistent interpretation of HTTP/2 requests in Amazon CloudFront with AWS WAF enabled might allow remote actors to bypass AWS WAF managed rule body inspection via crafted HTTP/2 requests that fragment the request body across frames so that only a partial body is inspected. This issue was remediated server-side. No customer action is required.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://aws.amazon.com/security/security-bulletins/2026-048-aws/ Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.9 · amazonNVD modified 2026-10-25 21:10
Affected (CPE criteria) 1
cpe:2.3:a:amazon:cloudfront:-:*:*:*:*:*:*:*
References 1
- https://aws.amazon.com/security/security-bulletins/2026-048-aws/ Vendor Advisory