CVE-2026-22726

Route Services Firewall Bypass

State: Published
Severity: 5.0 Medium
Published: Apr 30, 2026
Updated: May 1, 2026
Reserved: Jan 9, 2026

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).

Scores

CVSS	Score	Vector	Source
3.1	5.0 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L	vmware

Weaknesses

CWE-923 Improper Restriction of Communication Channel to Intended Endpoints

Affected Products

Product	Versions
Routing releaseCloudFoundry Foundation	v0.118.0 to before v0.372.0Affected
CF DeploymentCloudFoundry Foundation	v0.0.2 to before v55.0.0Affected

References

https://www.cloudfoundry.org/blog/cve-2026-22726-route-services-firewall-bypass/

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