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CVE-2026-1609

A flaw was found in Keycloak. When the JSON Web Token (JWT) authorization grant preview feature is enabled and a user account is disabled, Keycloak fails to validate the user’s disabled status during JWT authorization grant processing. A remote attacker with low privileges can exploit this improper access control vulnerability by presenting a valid assertion token from an external identity provider to obtain a JWT for a disabled user. This allows unauthorized access to sensitive resources.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:31f98c49a23141ec04aa2cebc47223308038673fa7071e36c5fd880f7a7ced6a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 13 assertions

{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-app","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-deployment","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-app","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/4

{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-deployment","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-deployment","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/2

{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-app","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/2

{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/0

{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/4

{"defaultStatus":"unaffected","product":"Keycloak","vendor":"Keycloak","versions":[{"lessThan":"26.5.3","status":"affected","version":"26.5.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-app","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/1

{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-deployment","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/6

Affected products and versions

13 source assertions
{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-app","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-deployment","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-app","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/4
{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-deployment","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-deployment","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/2
{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-app","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/2
{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/0
{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/4
{"defaultStatus":"unaffected","product":"Keycloak","vendor":"Keycloak","versions":[{"lessThan":"26.5.3","status":"affected","version":"26.5.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-app","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/affected/1
{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-quarkus-server-deployment","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/affected/6

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-284","description":"Improper Access Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/problemTypes/0/descriptions/0
{"cweId":"CWE-284","description":"Improper Access Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-1609"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/references/0
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-1609"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/references/0
{"name":"RHBZ#2435257","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2435257"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/references/1
{"name":"RHBZ#2435257","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2435257"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/references/1
{"url":"https://github.com/keycloak/keycloak/issues/46144"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/references/2
{"url":"https://github.com/keycloak/keycloak/releases/tag/26.5.3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/cna/references/3
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1609.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:baa1aeb15ed3e759ac7664246e493cd87ac2049079bfd5a062bc3fbb3b303dd9 · sha256:2367f3707bc690c6… · /containers/adp/0/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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