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Advisory record · GHSA-6j2q-c73v-97c5

Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies

CVSS 8.6 HighEPSS 0.0036 · 29th percentile

Published by the GitHub Advisory Database at 30 May 2025, 06:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.springframework.cloud:spring-cloud-gateway-serverMaven>=4.2.0, <4.2.3 || >=4.1.0, <4.1.8 || >=4.0.0, <=4.0.9 || <3.1.104.2.3, 4.1.8, 3.1.10
org.springframework.cloud:spring-cloud-gateway-server-mvcMaven>=4.1.7, <4.2.34.2.3
Identifiers
GHSA-6j2q-c73v-97c5 · CVE-2025-41235
Weakness (CWE)
CWE-444
Tags
Published
30 May 2025
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Versions of spring-cloud-gateway-server from 4.2.0 to before 4.2.3, from 4.1.0 to before 4.1.8, from 4.0.0 through 4.0.9, and before 3.1.10 forward X-Forwarded-For and Forwarded headers from untrusted proxies. spring-cloud-gateway-server-mvc versions 4.1.7 through 4.2.2 are also affected. Upgrade gateway-server to 4.2.3, 4.1.8 or 3.1.10, and gateway-server-mvc to 4.2.3. The source gives few details on what an attacker needs or what they can do.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.6 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N CNA (vmware)
  • CISA KEV Not listed.
  • EPSS 0.0036, the 29th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.