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CVE-2026-13762

HTTP/2 Stream Parser Confusion Body-Inspection Bypass in Amazon CloudFront with AWS WAF

Published: Jun 29, 2026Updated: Jul 1, 2026 Sources: CVE List NVDCWE-444
9.8CRITICAL
NVD MITRE
EPSS Score
0.4%
Top 63.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-444

Affected Products

amazon
commercial·US
cloudfrontSaaS
Cloud & SaaS / cloud-platform
AWS
commercial·US
Amazon CloudFrontSaaSSaaS Service
Cloud & SaaS / cloud-platform

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

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

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