Spring Cloud Gateway XFF Header Forwarding Issue (3.1.13)
CVE-2026-47825 Published on June 15, 2026
Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situations
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).
Vulnerability Analysis
CVE-2026-47825 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
Origin Validation Error
The software does not properly verify that the source of data or communication is valid.
Products Associated with CVE-2026-47825
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Affected Versions
Spring Cloud Gateway:- Version 3.1.0 and below 3.1.13 is affected.
- Version 4.1.0 and below 4.1.13 is affected.
- Version 4.2.0 and below 4.2.9 is affected.
- Version 4.3.0 and below 4.3.5 is affected.
- Version 5.0.0 and below 5.0.2 is affected.