CVE-2022-31733

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-02-03 · updated 2026-06-17
Weakness: CWE-295

Description

Starting with diego-release 2.55.0 and up to 2.69.0, and starting with CF Deployment 17.1 and up to 23.2.0, apps are accessible via another port on diego cells, allowing application ingress without a client certificate. If mTLS route integrity is enabled AND unproxied ports are turned off, then an attacker could connect to an application that should be only reachable via mTLS, without presenting a client certificate.

Affected products

Cloud Foundry cf-deployment: from 17.1 through 23.2.0
Cloud Foundry Diego: from 2.55.0 through 2.69.0

References

https://www.cloudfoundry.org/blog/cve-2022-31733-unsecured-application-port
https://www.cloudfoundry.org/blog/cve-2022-31733-unsecured-application-port

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