Vulnerability in Cloudfoundry Cf-Deployment
CVE-2026-22726
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (9.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Cloudfoundry Cf-Deployment
- Cloudfoundry Routing Release
- Cloudfoundry Foundation Cf Deployment — versions v0.0.2
- Cloudfoundry Foundation Routing Release — versions v0.118.0
Weakness classification (CWE)
References
- www.cloudfoundry.org/blog/cve-2026-22726-route-services-firewall-bypass/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-22726?
- CVE-2026-22726 is a medium-severity vulnerability in Cloudfoundry Cf-Deployment, classified under CWE-923. CVSS score: 5.0/10. Published 2026-05-01.
- How severe is CVE-2026-22726?
- Medium severity. CVSS v3 base score is 5.0 out of 10.