CVE-2026-13762
CRITICALHTTP/2 Stream Parser Confusion Body-Inspection Bypass in Amazon CloudFront with AWS WAF
Title source: cnaDescription
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.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
https://aws.amazon.com/security/security-bulletins/2026-048-aws/
Scores
CVSS v3
9.8
EPSS
0.0044
EPSS Percentile
35.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-444
Status
published
Products (2)
amazon/cloudfront
AWS/Amazon CloudFront
Published
Jun 29, 2026
Tracked Since
Jun 30, 2026