Disclosure summary
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.
Source-reported weakness categories
CWE-280
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-90462
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| fedoraproject | sssd | 2.12.0 |
| redhat | openshift_container_platform | 4.0 |
| redhat | enterprise_linux | 7.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
| redhat | enterprise_linux | 10.0 |
Original records & references
- NIST NVD record
- CVE Program record
- access.redhat.com — Vendor Advisory
- bugzilla.redhat.com — Exploit, Issue Tracking, Vendor Advisory
- bugzilla.redhat.com — Exploit, Issue Tracking, Vendor Advisory
PUBLISHED 2026-09-22T12:18:08-04:00
MODIFIED 2026-10-07T09:41:47-04:00
INGESTED 2026-10-10T20:25:12-04:00