medium6.8
CVE-2026-104048
A flaw was found in SSSD.
Impact
A flaw was found in SSSD. In trust-enabled identity management environments, SSSD evaluates Host-Based Access Control (HBAC) rules by stripping domain qualifiers and comparing only short usernames. An authenticated user in a trusted domain who shares the same username as an authorized local account can bypass access policies and gain unauthorized access to protected services or hosts.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Fedoraproject | Sssd | Version 2.12.0 |
| Redhat | Openshift Container Platform | Version 4.0 |
| Redhat | Enterprise Linux | Versions 7.0, 8.0, 9.0, 10.0 |