What’s Vulnerable › Vulnerabilities
CVE-2026-22726: Route Services Firewall Bypass
- Severity: medium (CVSS 5.0 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-01 · updated 2026-10-26
- Weakness: CWE-923
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).
Affected products
- Cloud Foundry cf-deployment: from 0.0.2 before 55.0.0 — fixed in 55.0.0
- Cloud Foundry Routing: from 0.118.0 before 0.372.0 — fixed in 0.372.0
How to fix
Upgrade to a fixed version: Cloud Foundry cf-deployment 55.0.0; Cloud Foundry Routing 0.372.0. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-22726 or the next vulnerability affects your stack