CVE-2026-6338 MEDIUM

CVE-2026-6338: HTTP request smuggling in Kong Enteprise Gateway

Vendor Kong
Product Kong Enterprise Gateway
Weakness CWE-444
Published June 11, 2026
Last update June 11, 2026
View on NVD All CVEs

CVSS base score

4.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P/R:A/RE:M

What the vulnerability does

01Description

A HTTP request smuggling and desynchronization vulnerability affects Kong Gateway Enterprise 3.4, 3.10, 3.11, 3.12, 3.13, and 3.14 series. The vulnerability is caused by a parsing flaw in Kong’s HTTP request processing pipeline when handling untrusted HTTP/1.1 traffic.

Key dates

02Disclosure timeline

June 11, 2026 CVE published
June 11, 2026 Record updated

Related vulnerabilities

04Related CVE

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