CVE-2026-13762 HTTP/2 Stream Parser Confusion Body-Inspection Bypass in Amazon CloudFront with AWS WAF
Remote attackers can bypass AWS WAF body inspection in CloudFront by fragmenting HTTP/2 request bodies, requiring no customer action as AWS remediated it server-side.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13762?
CVE-2026-13762 is a high-severity vulnerability in AWS Amazon CloudFront, published on 29 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-444
Which versions are affected by CVE-2026-13762?
It affects 1 product.
Products include Amazon Cloudfront.
How do I fix CVE-2026-13762?
No fix has been published for CVE-2026-13762 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-13762 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13762 exists.
Sources
Also known as GHSA-9jjc-h3c2-fw2v.