CVE-2026-104048 — Sssd: sssd: authorization bypass via cross-domain username collision in hbac evaluation
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 o…
Published: 2026-10-06 · CVSS: 6.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7