Medium severity · published Apr 30, 2026
CVE-2026-22726
Route Services Firewall Bypass
5.0
CVSS
0.2%
EPSS
No
On KEV
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
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CD
CF Deployment · CloudFoundry Foundation
v0.0.2 before v55.0.0 · source: vendor
RR
Routing release · CloudFoundry Foundation
v0.118.0 before v0.372.0 · source: vendor, NVD
CF
Cf-deployment · Cloudfoundry
0.0.2 before 55.0.0 · source: NVD
Affected product
CD
CF Deployment
CloudFoundry Foundation
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