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Spring Cloud Gateway EUVD-2026-37000

| CVE-2026-47825 HIGH
Origin Validation Error (CWE-346)
2026-06-15 vmware GHSA-hf28-w9wf-5x8m
8.6
CVSS 3.1 · Vendor: vmware
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Severity by source

Vendor (vmware) PRIMARY
8.6 HIGH
AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
vuln.today AI
6.8 MEDIUM

Network-reachable and unauthenticated, but vendor scopes it to 'certain configuration scenarios' and impact requires a trusting downstream, so AC:H; scope changes to downstream services with integrity-only impact.

3.1 AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
4.0 AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:H/SA:N
Red Hat
7.5 MEDIUM
qualitative

Primary rating from Vendor (vmware).

CVSS VectorVendor: vmware

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

3
Patch available
Jun 15, 2026 - 22:32 EUVD
Analysis Generated
Jun 15, 2026 - 21:53 vuln.today
CVE Published
Jun 15, 2026 - 19:34 cve.org
HIGH 8.6

DescriptionCVE.org

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).

AnalysisAI

Origin validation failure in Spring Cloud Gateway (WebMVC and WebFlux Server variants) allows remote attackers to spoof client identity by injecting X-Forwarded-For and Forwarded headers that the gateway then forwards from untrusted proxies in certain configuration scenarios. The flaw, tracked as CVE-2026-47825 with a CVSS 3.1 base score of 8.6 (Scope:Changed, Integrity:High), affects Spring Cloud Gateway 3.1.x, 4.1.x, 4.2.x, 4.3.x, and 5.0.x. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify internet-facing Spring Cloud Gateway
Delivery
Craft request with forged X-Forwarded-For/Forwarded header
Exploit
Send to gateway over HTTP(S)
Execution
Gateway forwards spoofed header downstream
Persist
Downstream service trusts attacker-supplied client IP
Impact
Bypass IP allow-list or pollute audit logs

Vulnerability AssessmentAI

Exploitation Exploitation requires the gateway to be reachable by the attacker and configured in one of the scenarios where it forwards X-Forwarded-For and Forwarded headers from untrusted proxies - per the advisory, the flaw is conditional on configuration rather than affecting every default deployment. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Real-world risk is meaningful but conditional. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A remote unauthenticated attacker sends an HTTP request to a vulnerable Spring Cloud Gateway with a forged X-Forwarded-For or Forwarded header claiming to originate from a trusted internal IP. The gateway forwards the spoofed header to a downstream microservice that uses it for IP-based access control, rate limiting, or audit logging, granting the attacker access to admin endpoints or hiding the true source IP in logs. …
Remediation Upgrade to the patched release on your current branch: Spring Cloud Gateway 3.1.13, 4.1.13, 4.2.9, 4.3.5, or 5.0.2, per the vendor advisory at https://spring.io/security/cve-2026-47825. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

24 hours: Inventory all systems running Spring Cloud Gateway 3.1.x, 4.1.x, 4.2.x, 4.3.x, or 5.0.x; assess exposure to untrusted proxy sources; review gateway logging for header injection attempts. …

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Vendor StatusVendor

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EUVD-2026-37000 vulnerability details – vuln.today

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