red-hatCVE-2026-90462
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...
Medium5.4CVE-2026-90462 · Published Sep 22, 2026
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Vendor | all versions | No fix yet |
| Red Hat Enterprise Linux 6 Vendor | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Vendor | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Vendor | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Vendor | all versions | No fix yet |
| Red Hat OpenShift Container Platform 4 Vendor | all versions | No fix yet |
| all versions | No fix yet |
Details and references
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.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Severity from
- no source yet
- Weakness
- CWE-280