PT-2026-48667 · Kong · Kong Enterprise Gateway

CVE-2026-6338

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Published

2026-06-11

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Updated

2026-06-11

CVSS v4.0

4.9

Medium

VectorAV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:M/U:X
Name of the Vulnerable Software and Affected Versions Kong Gateway Enterprise versions 3.4 Kong Gateway Enterprise versions 3.10 Kong Gateway Enterprise versions 3.11 Kong Gateway Enterprise versions 3.12 Kong Gateway Enterprise versions 3.13 Kong Gateway Enterprise versions 3.14
Description A HTTP request smuggling and desynchronization issue exists due to a parsing flaw in the HTTP request processing pipeline when handling untrusted HTTP/1.1 traffic. HTTP request smuggling occurs when the frontend and backend servers interpret the boundaries of a request differently, potentially allowing an attacker to "smuggle" a request to the backend.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

HTTP Request/Response Smuggling

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Weakness Enumeration

Related Identifiers

CVE-2026-6338

Affected Products

Kong Enterprise Gateway