CVE-2026-6338

MEDIUM EPSS 16.5%

Published Jun 11, 20262w ago · Modified Jun 17, 20262w ago

4.9 CVSS 4.0

Medium

Published Jun 11, 2026 2w ago

Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score

4.9

Exploitability

—

Impact

—

Vector string

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/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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

16.5% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-444

References 1

support.konghq.com https://support.konghq.com/support/s/article/CVE-2026-6338

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.