How severe is CVE-2019-3789?

CVE-2019-3789 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-3789 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3789?

CVE-2019-3789 affects Cloudfoundry Routing Release. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-3789?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-3789 published?

CVE-2019-3789 was published on 2019-04-24 and last updated on 2026-06-17.

CVE-2019-3789

CVE-2019-3789 is a medium-severity vulnerability in Cloudfoundry Routing Release with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Cloudfoundry Routing Release
Published: 2019-04-24
Last modified: 2026-06-17

Description

Cloud Foundry Routing Release, all versions prior to 0.188.0, contains a vulnerability that can hijack the traffic to route services hosted outside the platform. A user with space developer permissions can create a private domain that shadows the external domain of the route service, and map that route to an app. When the gorouter receives traffic destined for the external route service, this traffic will instead be directed to the internal app using the shadow route.

Frequently asked questions

What is CVE-2019-3789?: Cloud Foundry Routing Release, all versions prior to 0.188.0, contains a vulnerability that can hijack the traffic to route services hosted outside the platform. A user with space developer permissions can create a private domain that shadows the external domain of the route service, and map that route to an app. When the gorouter receives traffic destined for the external route service, this traffic will instead be directed to the internal app using the shadow route.
How severe is CVE-2019-3789?: CVE-2019-3789 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-3789 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3789?: CVE-2019-3789 affects Cloudfoundry Routing Release. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-3789?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-3789 published?: CVE-2019-3789 was published on 2019-04-24 and last updated on 2026-06-17.

References

https://www.cloudfoundry.org/blog/cve-2019-3789

Affected products (1)

cpe:2.3:a:cloudfoundry:routing_release:*:*:*:*:*:*:*:*

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