CVE-2026-47879 PUBLISHED

Spring Cloud Gateway SSRF and native file access with gRPC

Assigner: vmware
Reserved: 20.05.2026 Published: 27.08.2026 Updated: 27.08.2026

Spring Cloud Gateway JsonToGrpcGatewayFilterFactory allows arbitrary Spring Resource locations for defining the proto descriptor. Spring Cloud Gateway 5.0.0 - 5.0.2 Spring Cloud Gateway 4.3.0 - 4.3.5 Spring Cloud Gateway 4.0.0 - 4.2.9 Spring Cloud Gateway 3.1.13 and earlier

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
CVSS Score: 7.7

Attack Vector	Network	Scope	Changed
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	High	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Spring
Product	Spring Cloud Gateway
Versions	Default: unaffected affected from 5.0.0 to 5.0.2 (incl.) affected from 4.3.0 to 4.3.5 (incl.) affected from 4.0.0 to 4.2.9 (incl.) affected from 0 to 3.1.13 (incl.)

References

https://spring.io/security/cve-2026-47879

Problem Types

CWE-918 Server-Side Request Forgery (SSRF) CWE

Impacts

Spring Cloud Gateway JsonToGrpcGatewayFilterFactory allows arbitrary Spring Resource locations for defining the proto descriptor.