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CVE-2026-90462 Details

Description

A flaw was found in SSSD. When configured with the LDAP access provider and `ldap_access_order` including `ppolicy` or `lockout`, a fail-open condition in the LDAP ppolicy access check can occur if a user lookup returns zero results. This can incorrectly return success and cache an allow decision, permitting continued authorization for a deleted or deprovisioned user. A remote attacker with prior valid account context could exploit this to maintain access to information and potentially make limited modifications to resources that should no longer be available.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=2479483	CISA-ADP
https://access.redhat.com/security/cve/CVE-2026-90462	[email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2479483	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-280	Improper Handling of Insufficient Permissions or Privileges	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 22, 2026	CVE Modified	CISA-ADP
Sep 22, 2026	New CVE Received	[email protected]