PT-2026-107174 · Red Hat · Red Hat Enterprise Linux 10+5

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CVE-2026-104048

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Published

2026-10-06

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Updated

2026-10-06

CVSS v3.1

6.8

Medium

VectorAV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
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.

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-104048

Affected Products

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