How severe is CVE-2019-10199?

CVE-2019-10199 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-10199 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10199?

CVE-2019-10199 affects Redhat Keycloak. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-10199?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-10199 published?

CVE-2019-10199 was published on 2019-08-14 and last updated on 2026-06-17.

CVE-2019-10199

CVE-2019-10199 is a high-severity vulnerability in Redhat Keycloak with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Redhat Keycloak
Published: 2019-08-14
Last modified: 2026-06-17

Description

It was found that Keycloak's account console, up to 6.0.1, did not perform adequate header checks in some requests. An attacker could use this flaw to trick an authenticated user into performing operations via request from an untrusted domain.

Frequently asked questions

What is CVE-2019-10199?: It was found that Keycloak's account console, up to 6.0.1, did not perform adequate header checks in some requests. An attacker could use this flaw to trick an authenticated user into performing operations via request from an untrusted domain.
How severe is CVE-2019-10199?: CVE-2019-10199 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-10199 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10199?: CVE-2019-10199 affects Redhat Keycloak. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-10199?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-10199 published?: CVE-2019-10199 was published on 2019-08-14 and last updated on 2026-06-17.

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10199

Affected products (1)

cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*

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