How severe is CVE-2019-3889?

CVE-2019-3889 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-3889 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3889?

CVE-2019-3889 primarily affects Redhat Openshift Container Platform. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-3889?

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

When was CVE-2019-3889 published?

CVE-2019-3889 was published on 2019-07-11 and last updated on 2026-06-17.

CVE-2019-3889

CVE-2019-3889 is a medium-severity vulnerability in Redhat Openshift Container Platform with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Redhat Openshift Container Platform
Published: 2019-07-11
Last modified: 2026-06-17

Description

A reflected XSS vulnerability exists in authorization flow of OpenShift Container Platform versions: openshift-online-3, openshift-enterprise-3.4 through 3.7 and openshift-enterprise-3.9 through 3.11. An attacker could use this flaw to steal authorization data by getting them to click on a malicious link.

Frequently asked questions

What is CVE-2019-3889?: A reflected XSS vulnerability exists in authorization flow of OpenShift Container Platform versions: openshift-online-3, openshift-enterprise-3.4 through 3.7 and openshift-enterprise-3.9 through 3.11. An attacker could use this flaw to steal authorization data by getting them to click on a malicious link.
How severe is CVE-2019-3889?: CVE-2019-3889 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-3889 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3889?: CVE-2019-3889 primarily affects Redhat Openshift Container Platform. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-3889?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-3889 published?: CVE-2019-3889 was published on 2019-07-11 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.1:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.2:*:*:*:*:*:*:*

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