Keycloak-services: keycloak-services: admin api missing audience check

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-19688
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-06 06:16:42 UTC
Updated2026-11-06 18:18:11 UTC
DescriptionA flaw was found in the Admin REST API of Keycloak, an identity and access management solution. The Admin API fails to verify the intended audience of bearer tokens during authentication. This issue allows an attacker who operates a client within a realm to capture an administrator's access token and reuse it to perform unauthorized administrative actions, potentially leading to full realm compromise.

Risk And Classification

Primary CVSS: v3.1 6.8 MEDIUM from [email protected]

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

Problem Types: CWE-287 | CWE-287 Improper Authentication

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
3.1CNACVSS6.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Build Of Keycloak 26.6 unaffected 26.6.8-2 * rpm Not specified
CNA Red Hat Red Hat Build Of Keycloak 26.6 unaffected 26.6-24 * rpm Not specified
CNA Red Hat Red Hat Build Of Keycloak 26.6 unaffected 26.6-24 * rpm Not specified
CNA Red Hat Red Hat Build Of Keycloak 26.6.8 Not specified Not specified
CNA Red Hat Red Hat Build Of Keycloak 26.6.8 Not specified Not specified
CNA Red Hat Red Hat Single Sign-On 7 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2026:95761 [email protected] access.redhat.com
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
access.redhat.com/errata/RHSA-2026:95762 [email protected] access.redhat.com
access.redhat.com/security/cve/CVE-2026-19688 [email protected] access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Red Hat would like to thank Pedro Igor Silva (IBM) for reporting this issue. (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-08-11T20:20:40.000ZReported to Red Hat.
CNA2026-11-05T00:00:00.000ZMade public.

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