# CVE-2026-22726: Route Services Firewall Bypass

> Malicious developers can bypass egress rules to access internal network services via route services, requiring an upgrade to the routing release.

- **Severity:** Medium 5.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Apr 2026
- **Updated:** 1 May 2026
- **Also known as:** GHSA-rmvv-67vj-q642

## What is CVE-2026-22726?

CVE-2026-22726 is a medium-severity server-side request forgery vulnerability in CloudFoundry Foundation CF Deployment, published on 30 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Route Services can be leveraged to send app traffic to network destinations outside of an app's configured egress rules. As a result, a malicious developer with access to Cloudfoundry could configure a route-service that would allow it to send requests to HTTP services on internal networks reachable by the Gorouter, which may not have previously had direct access from outside networks, or from the application.
Routing release: affected from v0.118.0 through v0.371.0 (inclusive); upgrade to v0.372.0 or greater. CF Deployment: affected from v0.0.2 through v54.14.0 (inclusive); upgrade to v55.0.0 or greater (includes routing_release v0.372.0).

Weakness: CWE-923 (Improper Restriction of Communication Channel to Intended Endpoints)

## Which versions are affected by CVE-2026-22726?

It affects 2 products.


Products: Cloudfoundry Cf-Deployment, Cloudfoundry Routing Release.

## How do I fix CVE-2026-22726?

No fix has been published for CVE-2026-22726 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-22726 being exploited?

There is no known exploitation of CVE-2026-22726 in the wild and no public exploit code.

## Other vulnerabilities in CloudFoundry Foundation CF Deployment

- [CVE-2022-31733](https://insights.sbomify.com/CVE-2022-31733/): Auth bypass in Cloud Foundry Diego and CF Deployment (critical 9.1)
- [CVE-2020-5402](https://insights.sbomify.com/CVE-2020-5402/): UAA fails to check the state parameter when authenticating with external IDPs (high 8.8)
- [CVE-2019-11293](https://insights.sbomify.com/CVE-2019-11293/): UAA logs all query parameters with debug logging level (high 8.8)
- [CVE-2019-11290](https://insights.sbomify.com/CVE-2019-11290/): Cloud Foundry UAA logs query parameters in tomcat access file (high 8.8)
- [CVE-2019-11283](https://insights.sbomify.com/CVE-2019-11283/): Password leak in smbdriver logs (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-22726 and fix it if it is affected.

What it is: CVE-2026-22726 is a medium-severity server-side request forgery vulnerability in CloudFoundry Foundation CF Deployment, published on 30 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-22726 in the wild and no public exploit code.

Affected product: CloudFoundry Foundation CF Deployment. 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-2026-22726/ (Markdown: https://insights.sbomify.com/CVE-2026-22726/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-22726
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-22726
- OSV: https://osv.dev/vulnerability/CVE-2026-22726

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-22726/
Summaries are generated and may contain mistakes; the official description above is the record.