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CVE-2026-22726

Route Services Firewall Bypass

Published: Apr 30, 2026Updated: May 4, 2026 Sources: CVE List NVDCWE-923
NVD MITRE
5.0CVSSMEDIUM
EPSS Score
0.2%
Top 90.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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).

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-923

Affected Products

Routing releaseCloudFoundry Foundation
Mixed
Cloud & SaaS / container-orchestration
CF DeploymentCloudFoundry Foundation
Mixed
Cloud & SaaS / container-orchestration
cf-deploymentcloudfoundry
On-premSaaS Service
Cloud & SaaS / container-orchestration
routing releasecloudfoundry
On-prem
Cloud & SaaS / container-orchestration
cloudfoundry foundationcommercialCloud & SaaSaka cloud foundry, cf deployment, routing release, smb-volume-release
cloudfoundryoss-projectUSCloud & SaaS

Exploitability

Official Patch Available

References

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

Timeline

Published
Apr 30, 2026
Last Updated
May 4, 2026

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