CVE-2026-47825 Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situations

High 8.6 Published 15 Jun 2026 Updated 23 Jun 2026

Attackers can spoof IP addresses via forwarded headers in specific configurations, bypassing IP-based security controls in Spring Cloud Gateway.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-47825?

CVE-2026-47825 is a high-severity vulnerability in Spring Cloud Gateway, published on 15 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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).

Weakness: CWE-346

Which versions are affected by CVE-2026-47825?

It affects 1 product.

Products include Vmware Spring Cloud Gateway.

How do I fix CVE-2026-47825?

No fix has been published for CVE-2026-47825 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-47825 being exploited?

There is no known exploitation of CVE-2026-47825 in the wild and no public exploit code.

Sources

Also known as GHSA-hf28-w9wf-5x8m.