{"id":"CVE-2026-104048","published":"2026-10-06T20:17:14.977","lastModified":"2026-10-09T12:54:42.760","description":"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.","cvssScore":6.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","cwes":["CWE-1025"],"vendors":["fedoraproject","redhat"],"products":["sssd","openshift container platform","enterprise linux"],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-104048","tags":["Vendor Advisory","Issue Tracking"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478613","tags":["Exploit","Issue Tracking","Mitigation","Vendor Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478613","tags":["Exploit","Issue Tracking","Mitigation","Vendor Advisory"]}],"exploitRefs":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478613","tags":["Exploit","Issue Tracking","Mitigation","Vendor Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478613","tags":["Exploit","Issue Tracking","Mitigation","Vendor Advisory"]}],"hasPoc":true,"ai":null}