Vulnerability DatabaseCVE-2026-96453
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CVE-2026-96453
Published:November 05, 2026
Updated:November 09, 2026
A flaw was found in the Keycloak Admin CLI kcadm tool, which is used by administrators to manage Keycloak servers from the command line. When a custom truststore is provided to verify the server identity, the tool incorrectly accepts any self-signed certificate as long as the hostname matches. This allows a network attacker to impersonate the Keycloak server, steal administrative credentials, and perform unauthorized management actions.
Affected Packages
https://github.com/keycloak/keycloak.git (GITHUB):
Affected version(s) >=26.0.0 <26.4.17
Fix Suggestion:
Update to version 26.4.17
https://github.com/keycloak/keycloak.git (GITHUB):
Affected version(s) =5.0.0 <26.8.2 || >=6.0.0 <26.8.2 || >=7.0.0 <26.8.2 || >=8.0.0 <26.8.2 || >=9.0.0 <26.8.2 || >=10.0.0 <26.8.2 || >=11.0.0 <26.8.2 || >=12.0.0 <26.8.2 || >=13.0.0 <26.8.2 || =14.0.0 <26.8.2 || >=15.0.0 <26.8.2 || >=16.0.0 <26.8.2 || >=17.0.0 <26.8.2 || >=18.0.0 <26.8.2 || >=19.0.0 <26.8.2 || >=20.0.0 <26.8.2 || >=21.0.0 <26.8.2 || >=22.0.0 <26.8.2 || >=23.0.0 <26.8.2 || >=24.0.0 <26.8.2 || >=25.0.0 <26.8.2 || >=26.7.0 <26.8.2
Fix Suggestion:
Update to version 26.8.2
https://github.com/keycloak/keycloak.git (GITHUB):
Affected version(s) >=26.5.0 <26.6.8
Fix Suggestion:
Update to version 26.6.8
org.keycloak:keycloak-admin-cli (JAVA):
Affected version(s) >=26.5.0 <26.6.8.redhat-00002
Fix Suggestion:
Update to version 26.6.8.redhat-00002
org.keycloak:keycloak-admin-cli (JAVA):
Affected version(s) >=26.0.0 <26.4.17.redhat-00002
Fix Suggestion:
Update to version 26.4.17.redhat-00002
org.keycloak:keycloak-admin-cli (JAVA):
Affected version(s) >=15.0.0 <26.8.2 || >=23.0.0 <26.8.2 || >=26.7.0 <26.8.2 || >=7.0.0 <26.8.2 || >=6.0.0 <26.8.2 || >=10.0.0 <26.8.2 || >=21.0.0 <26.8.2 || >=18.0.0 <26.8.2 || >=24.0.0 <26.8.2 || >=11.0.0 <26.8.2 || >=8.0.0 <26.8.2 || =14.0.0 <26.8.2 || >=17.0.0 <26.8.2 || >=12.0.0 <26.8.2 || >=19.0.0 <26.8.2 || =5.0.0 <26.8.2 || >=9.0.0 <26.8.2 || >=16.0.0 <26.8.2 || >=25.0.0 <26.8.2 || >=13.0.0 <26.8.2 || >=22.0.0 <26.8.2 || >=20.0.0 <26.8.2
Fix Suggestion:
Update to version 26.8.2
Related Resources (6)
https://access.redhat.com/errata/RHSA-2026:95760
https://access.redhat.com/errata/RHSA-2026:95759
https://access.redhat.com/security/cve/CVE-2026-96453
https://bugzilla.redhat.com/show_bug.cgi?id=2539294
https://access.redhat.com/errata/RHSA-2026:95762
https://access.redhat.com/errata/RHSA-2026:95761
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CVSS v4
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
8
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Certificate Validation
CWE-295
EPSS
Base Score:
0.22