{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-22726", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-01-09T06:54:41.497Z", "datePublished": "2026-04-30T23:17:00.707Z", "dateUpdated": "2026-04-30T23:26:19.891Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-04-30T23:26:19.891Z"}, "title": "Route Services Firewall Bypass", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-923", "description": "CWE-923: Improper Restriction of Communication Channel to Intended Endpoints", "type": "CWE"}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "A privileged user can bypass application egress policy via route services; per CVSS v3.1 base, confidentiality and integrity are None and availability is Low."}]}], "affected": [{"vendor": "CloudFoundry Foundation", "product": "Routing release", "versions": [{"status": "affected", "version": "v0.118.0", "lessThan": "v0.372.0", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "CloudFoundry Foundation", "product": "CF Deployment", "versions": [{"status": "affected", "version": "v0.0.2", "lessThan": "v55.0.0", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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.\nRouting 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).", "supportingMedia": [{"type": "text/html", "base64": false, "value": "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.\nRouting 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)."}]}], "references": [{"url": "https://www.cloudfoundry.org/blog/cve-2026-22726-route-services-firewall-bypass/"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW", "baseSeverity": "MEDIUM", "baseScore": 5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "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.\nRouting 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)."}], "id": "CVE-2026-22726", "lastModified": "2026-05-01T00:16:23.650", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 1.4, "source": "security@vmware.com", "type": "Secondary"}]}, "published": "2026-05-01T00:16:23.650", "references": [{"source": "security@vmware.com", "url": "https://www.cloudfoundry.org/blog/cve-2026-22726-route-services-firewall-bypass/"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-923"}], "source": "security@vmware.com", "type": "Secondary"}]}

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