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high · CVSS 8

CVE-2026-96453

Org.keycloak/keycloak-admin-cli: keycloak-admin-cli: kcadm custom truststore accepts arbitrary self-signed certificates

Published 5 Nov 2026 · Source updated 6 Nov 2026 · Retrieved 2026-11-06 10:44 UTC

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What happened?

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.

Description supplied by CVE Program. Formatting is simplified; follow the original advisory for full details.

Affected software and versions

Source-provided software and version information
SoftwareVersion informationFixed version
keycloak-rhel9-containerRed Hatunaffected: 26.4-29 to < *See vendor advisory
keycloak-rhel9-operator-bundle-containerRed Hatunaffected: 26.4.17-2 to < *See vendor advisory
keycloak-rhel9-operator-containerRed Hatunaffected: 26.4-30 to < *See vendor advisory
keycloak-admin-cliRed HatDefault status: unaffectedSee vendor advisory
rhbk/keycloak-rhel9Red HatDefault status: unaffectedSee vendor advisory
rhbk/keycloak-rhel9-operatorRed HatDefault status: unaffectedSee vendor advisory
keycloak-coreRed HatDefault status: unaffectedSee vendor advisory
keycloak-coreRed HatDefault status: unaffectedSee vendor advisory
jboss-eap-7/eap74-els-openjdk11-openshift-rhel8Red HatDefault status: unaffectedSee vendor advisory
jboss-eap-7/eap74-els-openjdk17-openshift-rhel8Red HatDefault status: unaffectedSee vendor advisory
jboss-eap-7/eap74-els-openjdk8-openshift-rhel8Red HatDefault status: unaffectedSee vendor advisory
keycloak-coreRed HatDefault status: unaffectedSee vendor advisory
keycloak-coreRed HatDefault status: unaffectedSee vendor advisory
candlepinRed HatDefault status: unaffectedSee vendor advisory
keycloak-admin-cliRed HatDefault status: affectedSee vendor advisory
keycloak-coreRed HatDefault status: unaffectedSee vendor advisory
rh-sso7-keycloakRed HatDefault status: affectedSee vendor advisory

Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.

Is it being exploited?

This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.

CISA data retrieved 2026-11-06 16:38 UTC. Check CISA ↗

How to respond

  1. Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
  2. Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
  3. Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.

Sources and remediation references

This public advisory does not determine whether a particular server is affected. Records are refreshed as sources change; verify urgent decisions against the original advisory.

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