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CVE-2026-18206 Keycloak-services: keycloak-services: client policy source-host wildcard domain matching bypass

🗓️ 31 Jul 2026 07:08:29Reported by redhatType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Keycloak services flaw allows bypass of host restrictions for client changes via wildcard domains.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-18206
31 Jul 202607:08
attackerkb
cve
CVE
CVE-2026-18206
31 Jul 202607:08
cve
euvd
EUVD
EUVD-2026-51486
31 Jul 202607:08
euvd
nvd
NVD
CVE-2026-18206
31 Jul 202608:16
nvd
ptsecurity
Positive Technologies
PT-2026-66723
31 Jul 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-18206
31 Jul 202607:08
redhatcve
vulnrichment
Vulnrichment
CVE-2026-18206 Keycloak-services: keycloak-services: client policy source-host wildcard domain matching bypass
31 Jul 202607:08
vulnrichment
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Build of Keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "keycloak-services",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Build of Keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Build of Keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhbk-openshift-rhel9/rhbk-openshift-rhel9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Data Grid 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "keycloak-services",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:jboss_data_grid:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "packageName": "keycloak-services",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:jbosseapxp"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "keycloak-services",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7"
    ]
  }
]

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