Identity Management Service Vulnerability in Keycloak by Red Hat
CVE-2026-82968

6.4MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Build Of Keycloak
Red Hat Single Sign-on 7
Vendor
CVE Published:
2 September 2026

What is CVE-2026-82968?

A security flaw exists in Keycloak's first-broker-login process, where the verification proof for linking social identity provider accounts is inadequately constrained. This vulnerability allows an attacker with access to a different account on the same social provider to potentially link their malicious account to a victim's local profile, thereby obtaining unauthorized access to the victim's account.

References

https://access.redhat.com/security/cve/CVE-2026-82968
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2526318
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank He Wei（ギカク） for reporting this issue.
.