CVE-2026-90995

Description

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.

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Produits concernés

• Red Hat Enterprise Linux 10
• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 7
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9
• Red Hat OpenShift Container Platform 4
• Fedoraproject sssd
• Redhat openshift container platform
• Redhat enterprise linux

Scores CVSS

Faiblesses (CWE)

• CWE-476

Références

• https://access.redhat.com/security/cve/CVE-2026-90995 MitigationVendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2479464 ExploitIssue TrackingMitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories