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CVE-2026-1609

🗓️ 16 Jul 2026 00:26:10Reported by redhatType 
cve
 cve
🔗 web.nvd.nist.gov👁 74 Views

Keycloak flaw enables unauthorized access when the JSON Web Token grant is enabled and a user is disabled.

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Detection
Affected
Refs
NVD
Vulners
[
  {
    "vendor": "Keycloak",
    "product": "Keycloak",
    "versions": [
      {
        "status": "affected",
        "version": "26.5.0",
        "lessThan": "26.5.3",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat JBoss Enterprise Application Platform 8",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "packageName": "keycloak-quarkus-server",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:jboss_enterprise_application_platform:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat JBoss Enterprise Application Platform 8",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "packageName": "keycloak-quarkus-server-app",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:jboss_enterprise_application_platform:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat JBoss Enterprise Application Platform 8",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "packageName": "keycloak-quarkus-server-deployment",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:jboss_enterprise_application_platform:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "packageName": "keycloak-quarkus-server",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:jbosseapxp"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "packageName": "keycloak-quarkus-server-app",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:jbosseapxp"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "packageName": "keycloak-quarkus-server-deployment",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:jbosseapxp"
    ]
  }
]

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09 Aug 2026 15:10Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.18.1
EPSS0.00562
SSVC
74