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High, CVSS 8.6

Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies

CVE-2025-41235GHSA-6j2q-c73v-97c5

What to do

Partial vendor fix. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

  • GitHub Advisory Database and maintainer security advisories on GitHub

    GitHub-reviewed advisory GHSA-6j2q-c73v-97c5 lists affected ranges: Maven org.springframework.cloud:spring-cloud-gateway-server >=4.2.0 =4.1.0 =4.0.0 =0 =4.1.7 <4.2.3

    VerifiedObserved Structured GitHub Advisory Database record (type=reviewed) from the GitHub REST API.

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
8.6 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
EPSS
  • CVE-2025-41235: 0.36% estimated exploitation activity in the next 30 days; percentile 29.56 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Spring Cloud Gateway Server forwards the X-Forwarded-For and Forwarded headers from untrusted proxies.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-6j2q-c73v-97c5

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2025-41235

Advisory: Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies
IDs: CVE-2025-41235, GHSA-6j2q-c73v-97c5
Record: https://patchnext.com/advisories/cve-2025-41235 (revision 1, source checked 26 Oct 2026, 16:39 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.6)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: org.springframework.cloud:spring-cloud-gateway-server 4.2.3, 4.1.8, 3.1.10; org.springframework.cloud:spring-cloud-gateway-server-mvc 4.2.3. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.springframework.cloud:spring-cloud-gateway-server: affected >= 4.2.0, < 4.2.3; >= 4.1.0, < 4.1.8; >= 4.0.0, <= 4.0.9; < 3.1.10; fixed in 4.1.8, 3.1.10, 4.2.3
- Maven org.springframework.cloud:spring-cloud-gateway-server-mvc: affected >= 4.1.7, < 4.2.3; fixed in 4.2.3

## Suggested inspection (read-only)
- Maven org.springframework.cloud:spring-cloud-gateway-server: check the installed version with your package manager.
- Maven org.springframework.cloud:spring-cloud-gateway-server-mvc: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.springframework.cloud:spring-cloud-gateway-server, org.springframework.cloud:spring-cloud-gateway-server-mvc.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-6j2q-c73v-97c5 (GitHub-reviewed advisory GHSA-6j2q-c73v-97c5 lists affected ranges: Maven org.springframework.cloud:spring-cloud-gateway-server >=4.2.0 =4.1.0 =4.0.0 =0 =4.1.7 <4.2.3)

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