Vulnerability record/PUBLISHED/Published Nov 5, 2026 17:15:42 UTC
CVE-2026-96453
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.
Base score8.0/ 10
SeverityHighCVSS 3.1
Exploitability / impact
CVSS metric breakdown
Base severityHigh
Attack vectorNetworkAV
Attack complexityHighAC
Privileges requiredNonePR
User interactionRequiredUI
ScopeChangedS
Confidentiality impactHighC
Integrity impactHighI
Availability impactNoneA
CVSS vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:NCVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.
Record context
CVE Numbering Authorityredhat
Last updatedNov 5, 2026 23:44:47 UTC
PublishedNov 5, 2026 17:15:42 UTC
ReservedSep 23, 2026 09:49:58 UTC
Credits
- Red Hat would like to thank Paul Bottinelli (Trail of Bits in collaboration with OpenAI) for reporting this issue.