CVE-2026-22726CWE-923

Route Services Firewall Bypass

Medium · published April 30, 2026

CVSS v3.1
5.0
EPSS
0%
Percentile
9.1
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00199 · 9.1th percentile
Weakness
CWE-923 · Improper Restriction of Communication Channel to Intended Endpoints
Published
2026-04-30T23:17Z
EPSS history
Timeline
  • 30 APR 23:17Z
    Route Services Firewall Bypass
    cvelistv5