CVE-2026-17526 (GCVE-0-2026-17526)
Vulnerability from cvelistv5
Published
2026-09-16 15:46
Modified
2026-09-16 18:09
CWE
Summary
Keycloak is an open-source identity and access management solution. A vulnerability was discovered where a user with the impersonation role can impersonate a realm administrator. This allows the attacker to gain full administrative control over the realm, including the ability to manage users, clients, and roles.
References
https://access.redhat.com/errata/RHSA-2026:68276 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:68277 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:68278 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:68280 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-17526 vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2507409 issue-tracking, x_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4.16-2   < *
    cpe:/a:redhat:build_keycloak:26.4::el9
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   Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-26   < *
    cpe:/a:redhat:build_keycloak:26.4::el9
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   Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-26   < *
    cpe:/a:redhat:build_keycloak:26.4::el9
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   Red Hat Red Hat build of Keycloak 26.4.16     cpe:/a:redhat:build_keycloak:26.4::el9
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   Red Hat Red Hat build of Keycloak 26.4.16     cpe:/a:redhat:build_keycloak:26.4::el9
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   Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6.7-3   < *
    cpe:/a:redhat:build_keycloak:26.6::el9
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   Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6-20   < *
    cpe:/a:redhat:build_keycloak:26.6::el9
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   Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6-20   < *
    cpe:/a:redhat:build_keycloak:26.6::el9
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   Red Hat Red Hat build of Keycloak 26.6.7     cpe:/a:redhat:build_keycloak:26.6::el9
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   Red Hat Red Hat build of Keycloak 26.6.7     cpe:/a:redhat:build_keycloak:26.6::el9
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   Red Hat Red Hat build of Keycloak 26.6.7     cpe:/a:redhat:build_keycloak:26.6::el9
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   Red Hat Red Hat Data Grid 8     cpe:/a:redhat:jboss_data_grid:8
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   Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
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   Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
Create a notification for this product.
Show details on NVD website


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access management solution. 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      "cveMetadata": "{\"cveId\": \"CVE-2026-17526\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-16T18:09:00.607Z\", \"dateReserved\": \"2026-07-27T08:39:49.751Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2026-09-16T15:46:13.701Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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