CVE-2026-104048

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.

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Produits concernés

• Red Hat Enterprise Linux 10
• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 7
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9
• Red Hat OpenShift Container Platform 4
• Fedoraproject sssd
• Redhat openshift container platform
• Redhat enterprise linux

Scores CVSS

Faiblesses (CWE)

• CWE-1025

Références

• https://access.redhat.com/security/cve/CVE-2026-104048 Vendor AdvisoryIssue Tracking
• https://bugzilla.redhat.com/show_bug.cgi?id=2478613 ExploitIssue TrackingMitigationVendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2478613 ExploitIssue TrackingMitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories