Vulnerability · Published Aug 27, 2026 · Assigned by vmware

CVE-2026-47879Spring Cloud Gateway SSRF and native file access with gRPC

High 7.7

In plain English

A high-severity server-side request forgery in Spring Cloud Gateway from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.3%top 73.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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

Affected products (as reported)

VendorProductVersions
Spring Spring Cloud Gateway 5.0.0 – through 5.0.24.3.0 – through 4.3.54.0.0 – through 4.2.90 – through 3.1.13

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

References