How severe is CVE-2026-13762?

CVE-2026-13762 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-13762 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-13762?

CVE-2026-13762 affects Amazon Cloudfront. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-13762?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-13762 published?

CVE-2026-13762 was published on 2026-06-29 and last updated on 2026-07-01.

CVE-2026-13762

CVE-2026-13762 is a critical-severity vulnerability in Amazon Cloudfront with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-444.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 7.9
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-444
Affected product: Amazon Cloudfront
Published: 2026-06-29
Last modified: 2026-07-01

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.

Frequently asked questions

What is CVE-2026-13762?: 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.
How severe is CVE-2026-13762?: CVE-2026-13762 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-13762 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-13762?: CVE-2026-13762 affects Amazon Cloudfront. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-13762?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-13762 published?: CVE-2026-13762 was published on 2026-06-29 and last updated on 2026-07-01.

References

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

Affected products (1)

cpe:2.3:a:amazon:cloudfront:-:*:*:*:*:*:*:*

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