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Keycloak: keycloak: privilege escalation through hardcoded role mapper injection

Type: advisorySource: Official CVE List1 source record

A flaw was found in Keycloak. A highly privileged user with `manage-clients` permission can exploit this vulnerability by injecting a hardcoded role mapper into any client. This action allows the user to bypass existing scope restrictions and inject the `realm-admin` role into generated tokens, resulting in privilege escalation and full administrative access to the realm.

Announced Group revision 1
Original source ↗

CVE-2026-4629

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-4629

Red Hat build of Keycloak 26.4

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat build of Keycloak 26.4

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat build of Keycloak 26.4

Source reference: /containers/cna/affected/2/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat build of Keycloak 26.4.14

Source reference: /containers/cna/affected/3/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat build of Keycloak 26.6.5

Source reference: /containers/cna/affected/4/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "versions": [
      {
        "status": "unaffected",
        "version": "26.4.14-1",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhbk/keycloak-operator-bundle",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "versions": [
      {
        "status": "unaffected",
        "version": "26.4-22",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhbk/keycloak-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "versions": [
      {
        "status": "unaffected",
        "version": "26.4-22",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhbk/keycloak-rhel9-operator",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4.14",
    "packageName": "rhbk/keycloak-rhel9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unaffected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.6::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.6.5",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-4629

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#52391 · Revision 1
Added to Heist Feed
Publisher date
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