medium5.5
CVE-2026-90995
A flaw was found in SSSD (System Security Services Daemon).
Impact
A flaw was found in SSSD (System Security Services Daemon). A local attacker with privileges to connect to the PAM (Pluggable Authentication Modules) responder socket can send a specially crafted protocol request. If the `pam_app_services` configuration is enabled and the service item is omitted from the request, a NULL pointer dereference can occur. This vulnerability leads to a denial of service, causing the PAM responder to crash and disrupt authentication services.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Fedoraproject | Sssd | Version 2.12.0 |
| Redhat | Openshift Container Platform | Version 4.0 |
| Redhat | Enterprise Linux | Versions 7.0, 8.0, 9.0, 10.0 |