Is CVE-2026-22726 in the CISA KEV catalog?

No. CVE-2026-22726 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-22726?

CVE-2026-22726 has a CVSS v3 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2026-22726?

CVE-2026-22726 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-22726?

Upgrade cf-deployment to 55.0.0 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2026-22726

MEDIUM

5.0

CVSS v3

NVD

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).

CWE-923

How to fix

Remediation Available

cf-deploymentNVD

Affected:>= 0.0.2, < 55.0.0Fixed in:55.0.0CVE-2026-22726derived from NVD

routing releaseNVD

Affected:>= 0.118.0, < 0.372.0Fixed in:0.372.0CVE-2026-22726derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Vendor Advisory1

cloudfoundry.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-04.