User Authorization Flaw in Keycloak Affecting Organization Assignments
CVE-2025-1391

5.4MEDIUM

Key Information:

Status
Red Hat Build Of Keycloak
Red Hat Build Of Keycloak 26.0
Vendor
CVE Published:
17 February 2025

What is CVE-2025-1391?

A security flaw has been identified in Keycloak related to how organizations are assigned to users. This vulnerability arises when a user's username or email aligns with an organization’s domain pattern, leading to potential misassignments at the mapper level. As a result, tokens generated may misrepresent a user's actual affiliations. Should applications depend on these claims for user authorization, there is a risk that users could inadvertently gain access or privileges to organizations they do not belong to, elevating the chance for unauthorized actions within the system.

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References

https://access.redhat.com/errata/RHSA-2025:2544
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2545
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2025-1391
vdb-entryx_refsource_REDHAT

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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