# 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.

- **Severity:** High 7.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Jun 2026
- **Updated:** 29 Jun 2026
- **Also known as:** GHSA-9jjc-h3c2-fw2v

## 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 (Inconsistent Interpretation of HTTP Requests)

## Which versions are affected by CVE-2026-13762?

It affects 1 product.


Products: 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.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13762 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13762 exists.

Affected product: AWS Amazon CloudFront. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-13762/ (Markdown: https://insights.sbomify.com/CVE-2026-13762/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13762
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13762
- OSV: https://osv.dev/vulnerability/CVE-2026-13762

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-13762/
Summaries are generated and may contain mistakes; the official description above is the record.