# CVE-2026-47825: Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situations

> Attackers can spoof IP addresses via forwarded headers in specific configurations, bypassing IP-based security controls in Spring Cloud Gateway.

- **Severity:** High 8.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jun 2026
- **Updated:** 23 Jun 2026
- **Also known as:** GHSA-hf28-w9wf-5x8m

## What is CVE-2026-47825?

CVE-2026-47825 is a high-severity vulnerability in Spring Cloud Gateway, published on 15 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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).

Weakness: CWE-346 (Origin Validation Error)

## Which versions are affected by CVE-2026-47825?

It affects 1 product.


Products: Vmware Spring Cloud Gateway.

## How do I fix CVE-2026-47825?

No fix has been published for CVE-2026-47825 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-47825 being exploited?

There is no known exploitation of CVE-2026-47825 in the wild and no public exploit code.

## Other vulnerabilities in Spring Cloud Gateway

- [CVE-2026-47879](https://insights.sbomify.com/CVE-2026-47879/): Spring Cloud Gateway SSRF and native file access with gRPC (high 7.7)
- [CVE-2026-22750](https://insights.sbomify.com/CVE-2026-22750/): SSL bundle configuration silently bypassed in Spring Cloud Gateway (high 7.5)
- [CVE-2021-22051](https://insights.sbomify.com/CVE-2021-22051/): Request injection in Spring Cloud Gateway (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-47825 and fix it if it is affected.

What it is: CVE-2026-47825 is a high-severity vulnerability in Spring Cloud Gateway, published on 15 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-47825 in the wild and no public exploit code.

Affected product: Spring Cloud Gateway. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-47825/ (Markdown: https://insights.sbomify.com/CVE-2026-47825/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-47825
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-47825
- OSV: https://osv.dev/vulnerability/CVE-2026-47825

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-47825/
Summaries are generated and may contain mistakes; the official description above is the record.