CVE-2026-22726 Route Services Firewall Bypass

Medium 5.0 Published 30 Apr 2026 Updated 1 May 2026

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

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

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

Which versions are affected by CVE-2026-22726?

It affects 2 products.

Products include 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.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-22726 being exploited?

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

Sources

Also known as GHSA-rmvv-67vj-q642.