CVE-2019-14837

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-01-07 · updated 2026-06-17
Weakness: CWE-547

Description

A flaw was found in keycloack before version 8.0.0. The owner of 'placeholder.org' domain can setup mail server on this domain and knowing only name of a client can reset password and then log in. For example, for client name 'test' the email address will be 'service-account-test@placeholder.org'.

Affected products

Keycloak: before 8.0.0 — fixed in 8.0.0
Red Hat Single Sign-On: 7.3

How to fix

Upgrade to a fixed version: Keycloak 8.0.0. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14837
https://github.com/keycloak/keycloak/commit/9a7c1a91a59ab85e7f8889a505be04a71580777f
https://issues.jboss.org/browse/KEYCLOAK-10780
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14837
https://github.com/keycloak/keycloak/commit/9a7c1a91a59ab85e7f8889a505be04a71580777f
https://issues.jboss.org/browse/KEYCLOAK-10780

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