Privilege Escalation Risk in Keycloak Products by Red Hat
CVE-2026-4629

6.5MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Build Of Keycloak
Vendor
CVE Published:
30 June 2026

What is CVE-2026-4629?

A security flaw exists in Keycloak that allows a highly privileged user, with the 'manage-clients' permission, to exploit the system by injecting a hardcoded role mapper into any client. This action bypasses existing scope restrictions and enables the injection of the 'realm-admin' role into generated tokens. As a result, this can lead to privilege escalation, granting full administrative access to the realm and potentially compromising the entire system security.

References

https://access.redhat.com/security/cve/CVE-2026-4629
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2450244
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Daniel Peters (Operating Intelligence Inc.), Lior Moshe (Operating Intelligence Inc.), and Uri Rolls (Operating Intelligence Inc.) for reporting this issue.
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