CVE-2025-41235: CVE-2025-41235: Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies

Severity: high (CVSS 8.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-30 · updated 2026-06-17
Weakness: CWE-444

Description

Spring Cloud Gateway Server forwards the X-Forwarded-For and Forwarded headers from untrusted proxies.

Affected products

Spring Cloud Gateway: from 2.2.10.RELEASE - 4.2.2, 4.3.0-{M1, M2, RC1} before 4.3.0, 4.2.3, 4.1.8, 4.0.12, 3.1.10 — fixed in 3.1.10, 4.0.12, 4.1.8, 4.2.3, 4.3.0
VMware Spring Cloud Gateway Server MVC: from 4.1.7 - 4.2.2, 4.3.0-{M1, M2, RC1} before 4.3.0, 4.2.3, 4.1.8 — fixed in 4.1.8, 4.2.3, 4.3.0

How to fix

Upgrade to a fixed version: Spring Cloud Gateway 3.1.10, 4.0.12, 4.1.8, 4.2.3; VMware Spring Cloud Gateway Server MVC 4.1.8, 4.2.3, 4.3.0. Check the vendor advisory for mitigations.

References

https://spring.io/security/cve-2025-41235

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