EUVD-2026-66842
GHSA-7mwm-q6x4-5h32
Severity by source
AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
PR:H because configuring filter factories requires gateway administrative access; S:C because SSRF pivots beyond the gateway into internal systems.
Primary rating from Vendor (vmware).
CVSS VectorNVD
Lifecycle Timeline
5DescriptionNVD
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
AnalysisAI
Server-side request forgery (SSRF) in Spring Cloud Gateway's JsonToGrpcGatewayFilterFactory allows an authenticated gateway administrator to specify arbitrary Spring Resource URLs as the proto descriptor location, causing the gateway to fetch attacker-controlled internal or external resources. Affected versions span the 3.x through 5.x release trains (CPE: cpe:2.3:a:vmware:spring_cloud_gateway). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires PR:H - the attacker must hold gateway administrative privileges sufficient to modify route configurations, typically via the Spring Cloud Gateway Actuator API (/actuator/gateway/routes) or direct access to the application's configuration files. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-supplied CVSS vector (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N, score 8.7) accurately reflects the threat model: the PR:H metric is the key limiting factor, requiring gateway administrative credentials or write access to route configuration. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the vendor advisory at https://spring.io/security/cve-2026-47879 for exact patched release versions - the provided input data confirms affected ranges but does not specify the precise fixed release numbers, so these must be verified directly before upgrading. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Spring Cloud Gateway deployments and identify which run versions 3.x through 5.x; audit current gateway administrator role assignments and access controls. …
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External POC / Exploit Code
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