CVE-2026-47825

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Header Injection in Spring Cloud Gateway Server

Publication date: 2026-06-15

Last updated on: 2026-06-23

Assigner: VMware

Description

Spring Cloud Gateway Server forwards the X-Forwarded-For and Forwarded headers from untrusted proxies in certain configuration scenarios. This affects both the WebMVC and WebFlux Gateway Servers. Affected versions: Spring Cloud Gateway 3.1.x (fix 3.1.13). Spring Cloud Gateway 4.1.x (fix 4.1.13). Spring Cloud Gateway 4.2.x (fix 4.2.9). Spring Cloud Gateway 4.3.x (fix 4.3.5). Spring Cloud Gateway 5.0.x (fix 5.0.2).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-15

Last Modified

2026-06-23

Generated

2026-07-06

AI Q&A

2026-06-16

EPSS Evaluated

2026-07-04

NVD

CVE-2026-47825

Affected Vendors & Products

Vendor	Product	Version / Range
vmware	spring_cloud_gateway	to 3.1.13 (inc)
vmware	spring_cloud_gateway	to 4.1.13 (inc)
vmware	spring_cloud_gateway	to 4.2.9 (inc)
vmware	spring_cloud_gateway	to 4.3.5 (inc)
vmware	spring_cloud_gateway	to 5.0.2 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-346	The product does not properly verify that the source of data or communication is valid.

Attack-Flow Graph

Mitigation Strategies

To mitigate this vulnerability, you should upgrade your Spring Cloud Gateway to a fixed version. The affected versions and their fixed releases are:

Spring Cloud Gateway 3.1.x - upgrade to 3.1.13 or later
Spring Cloud Gateway 4.1.x - upgrade to 4.1.13 or later
Spring Cloud Gateway 4.2.x - upgrade to 4.2.9 or later
Spring Cloud Gateway 4.3.x - upgrade to 4.3.5 or later
Spring Cloud Gateway 5.0.x - upgrade to 5.0.2 or later

Executive Summary

This vulnerability occurs in Spring Cloud Gateway Server where it forwards the X-Forwarded-For and Forwarded headers from untrusted proxies under certain configuration scenarios. This behavior affects both the WebMVC and WebFlux Gateway Servers.

Impact Analysis

The vulnerability can allow an attacker to manipulate the X-Forwarded-For and Forwarded headers, potentially leading to incorrect identification of the client's IP address. This can impact security controls that rely on these headers for access control, logging, or rate limiting, possibly enabling unauthorized access or evasion of security measures.

Compliance Impact

The provided information does not specify how the vulnerability in Spring Cloud Gateway Server affects compliance with common standards and regulations such as GDPR or HIPAA.

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