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VULNERABILITIES

CVE-2026-104048 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=2478613 CISA-ADP
https://access.redhat.com/security/cve/CVE-2026-104048 [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2478613 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-1025Comparison Using Wrong Factors[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-104048
NVD Published Date:
Oct 6, 2026
NVD Last Modified:
Oct 7, 2026
Source:
[email protected]
CVE-2026-104048 Details - Not Deferred