CVE-2026-13762

Critical

Description

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.

SeverityCritical

CVSS9.8

Exploit probability—

Product

Amazon Cloudfront

PublishedJun 29, 2026

First seenJun 29, 2026

Weakness typeCWE-444CWE-444

How to fix

Vendor advisories

aws.amazon.com/security/security-bulletins/2026-048-aws/

Affected products

Product	Affected versions	Fixed in
amazon cloudfront	No range specified	—

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