Bug 2489050 (CVE-2026-47825)

Summary:	CVE-2026-47825 spring-cloud-gateway: Spring Cloud Gateway Server: Security bypass due to untrusted header forwarding
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anujha, asoldano, bbaranow, bmaxwell, bstansbe, dlofthou, istudens, ivassile, iweiss, mosmerov, msvehla, nwallace, pesilva, pjindal, pmackay, rstancel, thjenkin, vdosoudi
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in Spring Cloud Gateway Server. In certain configurations, the server improperly forwards X-Forwarded-For and Forwarded headers received from untrusted proxies. This vulnerability affects both WebMVC and WebFlux Gateway Servers, potentially allowing an attacker to manipulate the perceived client origin or bypass security controls by injecting malicious header information.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-06-15 21:02:08 UTC

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).