CVE-2026-47825: Spring Cloud Gateway Server forwards the X-Forwarded-For and Forwarded headers from untrusted proxies in certa

Routine

HIGH 8.6REMOTEUPGRADE

CVE-2026-47825 is a high-severity flaw (CVSS 8.6) affecting spring cloud gateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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).

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-346
Published	2026-06-15
Last modified	2026-10-25

Publisher (CNA): VMware · Vendor: vmware

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-15 21:17 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

vmware spring cloud gateway UPGRADE

Affected: <= 3.1.10 · >= 4.0.0 and < 4.1.13 · >= 4.2.0 and < 4.2.9 · >= 4.3.0 and < 4.3.4.1 · >= 5.0.0 and < 5.0.1.1

Fixed in: 4.1.13, 4.2.9, 4.3.4.1, 5.0.1.1

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy spring-cloud-gateway || rpm -q spring-cloud-gateway || spring-cloud-gateway --version

2. UPGRADE to 4.1.13 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade spring-cloud-gateway

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade spring-cloud-gateway

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)

apt-cache madison spring-cloud-gateway sudo apt install spring-cloud-gateway=<VERSION_BEFORE_4.0.0> sudo apt-mark hold spring-cloud-gateway

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list spring-cloud-gateway sudo dnf downgrade spring-cloud-gateway-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add spring-cloud-gateway

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-47825?

spring cloud gateway: upgrade to 4.1.13, 4.2.9, 4.3.4.1, 5.0.1.1. Exact commands for each OS are on this page.

Is CVE-2026-47825 being exploited?

CVE-2026-47825 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-47825 affect?

CVE-2026-47825 affects spring cloud gateway. Severity is high (CVSS 8.6). 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

How urgent is CVE-2026-47825?

Priority 37/100. High severity; Remotely exploitable, no login, no user action

Software pages

VMware vulnerabilities

References

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