Keycloak-services: improper authorization in keycloak organization mapper allows unauthorized organization claims

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Summary

CVECVE-2025-1391
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-02-17 14:15:08 UTC
Updated2026-05-06 17:16:19 UTC
DescriptionA flaw was found in the Keycloak organization feature, which allows the incorrect assignment of an organization to a user if their username or email matches the organization’s domain pattern. This issue occurs at the mapper level, leading to misrepresentation in tokens. If an application relies on these claims for authorization, it may incorrectly assume a user belongs to an organization they are not a member of, potentially granting unauthorized access or privileges.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

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

Problem Types: CWE-284 | CWE-284 Improper Access Control

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
3.1CNACVSS5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Build Of Keycloak Not specified Not specified
CNA Red Hat Red Hat Build Of Keycloak 26.0 unaffected 26.0.10-3 * rpm Not specified
CNA Red Hat Red Hat Build Of Keycloak 26.0 unaffected 26.0-11 * rpm Not specified
CNA Red Hat Red Hat Build Of Keycloak 26.0 unaffected 26.0-12 * rpm Not specified

References

ReferenceSourceLinkTags
github.com/keycloak/keycloak/pull/37235 [email protected] github.com
access.redhat.com/errata/RHSA-2025:2545 [email protected] access.redhat.com
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
github.com/keycloak/keycloak/issues/37169 [email protected] github.com
access.redhat.com/security/cve/CVE-2025-1391 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:2544 [email protected] access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2025-02-17T07:46:40.184ZReported to Red Hat.
CNA2025-02-17T00:00:00.000ZMade public.
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