CVE-2026-22726: cloudfoundry foundation cf deployment

Vulnerability summary

CVE-2026-22726 is a medium (CVSS 5.0) vulnerability in cloudfoundry foundation cf deployment. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9% of scored vulnerabilities.

Timeline

1. 30-04-2026
   PublishedVulnerability first disclosed.
2. 01-05-2026
   Last modifiedVulnerability information updated.

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).

• CWE-923Improper Restriction of Communication Channel to Intended EndpointsThe product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.