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CVE-2026-47825

Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situations

HIGH
8.6
CVSS Score
Published: June 15, 2026 at 07:34 PM UTC
Updated: October 25, 2026 at 11:10 PM UTC
2 products affected across 2 vendorsSpring Cloud GatewaySpring Cloud Gateway

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Severity
HIGH8.6
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Spring Cloud Gateway· VMware
95%
v ≤ 3.1.104.0.0 ≤ v < 4.1.134.2.0 ≤ v < 4.2.94.3.0 ≤ v < 4.3.4.15.0.0 ≤ v < 5.0.1.1
Affected range stops below 4.1.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.2.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.3.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.0.1.1, so it looks safe — our inference, not a vendor statement
Spring Cloud Gateway· Spring
90%
3.1.0 ≤ v < 3.1.134.1.0 ≤ v < 4.1.134.2.0 ≤ v < 4.2.94.3.0 ≤ v < 4.3.4.15.0.0 ≤ v < 5.0.1.13.1.04.1.04.2.04.3.05.0.0
Affected range stops below 3.1.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.2.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.3.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.0.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://spring.io/security/cve-2026-47825

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHvmware
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-346

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