Riskcovery

CVE-2026-6338

HTTP request smuggling in Kong Enteprise Gateway

State
Published
Severity
4.9 Medium
Published
Jun 11, 2026
Updated
Jun 11, 2026
Reserved
Apr 15, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.04.9 MediumCVSS: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:MKong

Weaknesses

  • CWE-444 Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')

Affected Products

ProductVersions
Kong Enterprise GatewayKong
  • 3.4.0.0 to before 3.4.3.27Affected
  • 3.10.0.0 to before 3.10.0.12Affected
  • 3.11.0.0 to before 3.11.0.12Affected
  • 3.12.0.0 to before 3.12.0.7Affected
  • 3.13.0.0 to before 3.13.0.5Affected
  • 3.14.0.0 to before 3.14.0.4Affected

References

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