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CVE-2026-16105

Red Hat build of Keycloak 26.6 · Vulnerability

CVSS 3.1 4.9 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-16105

Published

A flaw was found in the RoleContainerResource component of Keycloak. The issue occurs because certain name-based endpoints in the admin REST API do not properly enforce authorization checks when managing composite roles. This allows a delegated administrator with manage-realm permissions to remove essential child roles from built-in admin roles, potentially disrupting administrative functions within a realm.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-16105

Published

Keycloak-services: keycloak-services: missing per-role authorization on rolecontainerresource composite endpoints

A flaw was found in the RoleContainerResource component of Keycloak. The issue occurs because certain name-based endpoints in the admin REST API do not properly enforce authorization checks when managing composite roles. This allows a delegated administrator with manage-realm permissions to remove essential child roles from built-in admin roles, potentially disrupting administrative functions within a realm.

Source published
31 Jul 2026 07:03:36 UTC
Source modified
16 Sep 2026 18:34:16 UTC
Saved here
23 Oct 2026 15:48:27 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

ChangeIntel

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Sources read 14 Nov 11:24 UTC · 273 of 275 readable · 269 fully read · documentation 469/469 current

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