CVE-2019-14820

Exposure of Sensitive Information to an Unauthorized Actor in Keycloak

4.3 MediumFix available

It was found that keycloak before version 8.0.0 exposes internal adapter endpoints in org.keycloak.constants.AdapterConstants, which can be invoked via a specially-crafted URL. This vulnerability could allow an attacker to access unauthorized information.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.72%Up 0.3 points since Apr 14, 2021

What each source reports

CVE List Score used 4.3

Record: CVE-2019-14820
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

EUVDEUVD-2020-0398 4.3

Record: EUVD-2020-0398
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-xfqh-7356-vqjj 4.3

Exposure of Sensitive Information to an Unauthorized Actor in Keycloak

Record: GHSA-xfqh-7356-vqjj
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

NVD 4.3

Record: CVE-2019-14820
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0: 4.0 MediumAV:N/AC:L/Au:S/C:P/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

OSV 4.3

Record: CVE-2019-14820
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVGHSA-xfqh-7356-vqjj 4.3

Exposure of Sensitive Information to an Unauthorized Actor in Keycloak

Record: GHSA-xfqh-7356-vqjj
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

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OSVRHSA-2019:3044 9.8

Red Hat Security Advisory: Red Hat Single Sign-On 7.3.4 security update on RHEL 6

Record: RHSA-2019:3044
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVRHSA-2019:3045 9.8

Red Hat Security Advisory: Red Hat Single Sign-On 7.3.4 security update on RHEL 7

Record: RHSA-2019:3045
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVRHSA-2019:3046 9.8

Red Hat Security Advisory: Red Hat Single Sign-On 7.3.4 security update on RHEL 8

Record: RHSA-2019:3046
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVRHSA-2019:3048 4.3

Red Hat Security Advisory: RH-SSO 7.3.4 adapters for Enterprise Application Platform 6 security update

Record: RHSA-2019:3048
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVRHSA-2019:3049 4.3

Red Hat Security Advisory: RH-SSO 7.3.4 adapters for Enterprise Application Platform 7.2 security update

Record: RHSA-2019:3049
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`org.keycloak:keycloak-core` Maven	before 8.0.0	8.0.0
`org.keycloak:keycloak-core` Maven	before 8.0.0, plus listed versions 1.0-alpha-11.0-alpha-1-120620131.0-alpha-21.0-alpha-31.0-alpha-4 Show 45 moreShow less 1.0-beta-11.0-beta-1-201505211.0-beta-1-201505231.0-beta-21.0-beta-31.0-beta-41.0-final1.0-rc-11.0-rc-21.0.1.Final1.0.2.Final1.0.3.Final1.0.4.Final1.0.5.Final1.1.0.Beta11.1.0.Beta21.1.0.Final1.1.1.Final1.2.0.Beta11.2.0.CR11.2.0.Final1.3.0.Final1.3.1.Final1.4.0.Final1.5.0-Final1.5.0.Final1.5.1.Final1.6.0.Final1.6.1.Final1.7.0.CR11.7.0.Final1.8.0.Alpha11.8.0.CR11.8.0.CR21.8.0.CR31.8.0.Final1.8.1.Final1.9.0.CR11.9.0.Final1.9.1.Final1.9.2.Final1.9.3.Final1.9.4.Final1.9.5.Final1.9.7.Final	8.0.0
`rh-sso7-keycloak` Red Hat:red_hat_single_sign_on:7::el6 From an advisory covering 6 CVEs	before 0:4.8.13-1.Final_redhat_00001.1.el6sso	0:4.8.13-1.Final_redhat_00001.1.el6sso
`rh-sso7-keycloak-server` Red Hat:red_hat_single_sign_on:7::el6 From an advisory covering 6 CVEs	before 0:4.8.13-1.Final_redhat_00001.1.el6sso	0:4.8.13-1.Final_redhat_00001.1.el6sso
`rh-sso7-keycloak` Red Hat:red_hat_single_sign_on:7::el7 From an advisory covering 6 CVEs	before 0:4.8.13-1.Final_redhat_00001.1.el7sso	0:4.8.13-1.Final_redhat_00001.1.el7sso
`rh-sso7-keycloak-server` Red Hat:red_hat_single_sign_on:7::el7 From an advisory covering 6 CVEs	before 0:4.8.13-1.Final_redhat_00001.1.el7sso	0:4.8.13-1.Final_redhat_00001.1.el7sso
`rh-sso7-libunix-dbus-java` Red Hat:red_hat_single_sign_on:7::el7 From an advisory covering 6 CVEs	before 0:0.8.0-2.el7sso	0:0.8.0-2.el7sso
`rh-sso7-libunix-dbus-java-debuginfo` Red Hat:red_hat_single_sign_on:7::el7 From an advisory covering 6 CVEs	before 0:0.8.0-2.el7sso	0:0.8.0-2.el7sso
`rh-sso7-libunix-dbus-java-devel` Red Hat:red_hat_single_sign_on:7::el7 From an advisory covering 6 CVEs	before 0:0.8.0-2.el7sso	0:0.8.0-2.el7sso
`rh-sso7-keycloak` Red Hat:red_hat_single_sign_on:7::el8 From an advisory covering 6 CVEs	before 0:4.8.13-1.Final_redhat_00001.1.el8sso	0:4.8.13-1.Final_redhat_00001.1.el8sso

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Affected packages
Package	Affected	Fixed
`rh-sso7-keycloak-server` Red Hat:red_hat_single_sign_on:7::el8 From an advisory covering 6 CVEs	before 0:4.8.13-1.Final_redhat_00001.1.el8sso	0:4.8.13-1.Final_redhat_00001.1.el8sso
`keycloak-adapter-sso7_3-eap6` Red Hat:jboss_enterprise_application_platform:6::el6	before 0:4.8.13-1.Final_redhat_00001.1.ep6.el6	0:4.8.13-1.Final_redhat_00001.1.ep6.el6
`keycloak-saml-adapter-sso7_3-eap6` Red Hat:jboss_enterprise_application_platform:6::el6	before 0:4.8.13-1.Final_redhat_00001.1.ep6.el6	0:4.8.13-1.Final_redhat_00001.1.ep6.el6
`keycloak-adapter-sso7_3-eap6` Red Hat:jboss_enterprise_application_platform:6::el7	before 0:4.8.13-1.Final_redhat_00001.1.ep6.el7	0:4.8.13-1.Final_redhat_00001.1.ep6.el7
`keycloak-saml-adapter-sso7_3-eap6` Red Hat:jboss_enterprise_application_platform:6::el7	before 0:4.8.13-1.Final_redhat_00001.1.ep6.el7	0:4.8.13-1.Final_redhat_00001.1.ep6.el7
`eap7-keycloak-adapter-sso7_3` Red Hat:jboss_enterprise_application_platform:7.2::el6	before 0:4.8.13-1.Final_redhat_00001.1.el6eap	0:4.8.13-1.Final_redhat_00001.1.el6eap
`eap7-keycloak-saml-adapter-sso7_3` Red Hat:jboss_enterprise_application_platform:7.2::el6	before 0:4.8.13-1.Final_redhat_00001.1.el6eap	0:4.8.13-1.Final_redhat_00001.1.el6eap
`eap7-keycloak-adapter-sso7_3` Red Hat:jboss_enterprise_application_platform:7.2::el7	before 0:4.8.13-1.Final_redhat_00001.1.el7eap	0:4.8.13-1.Final_redhat_00001.1.el7eap
`eap7-keycloak-saml-adapter-sso7_3` Red Hat:jboss_enterprise_application_platform:7.2::el7	before 0:4.8.13-1.Final_redhat_00001.1.el7eap	0:4.8.13-1.Final_redhat_00001.1.el7eap
`eap7-keycloak-adapter-sso7_3` Red Hat:jboss_enterprise_application_platform:7.2::el8	before 0:4.8.13-1.Final_redhat_00001.1.el8eap	0:4.8.13-1.Final_redhat_00001.1.el8eap
`eap7-keycloak-saml-adapter-sso7_3` Red Hat:jboss_enterprise_application_platform:7.2::el8	before 0:4.8.13-1.Final_redhat_00001.1.el8eap	0:4.8.13-1.Final_redhat_00001.1.el8eap

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-14820 is a medium vulnerability (CVSS 4.3) in Keycloak, published January 8, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.72%, the 54th percentile. Fixed in org.keycloak:keycloak-core 8.0.0.

References

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This page doesn't list everything

Left out here: 54 versions. The JSON record has them.