CVE-2026-104046

Description

A flaw was found in SSSD (System Security Services Daemon). When Identity Provider (IdP) authentication is enabled, pre-authentication requests retain state in memory without being cleared or timed out. A local attacker can repeatedly initiate authentication flows without completing them, causing unbounded memory consumption. This memory exhaustion can lead to a Denial of Service (DoS) by degrading or terminating SSSD 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-770

Références

• https://access.redhat.com/security/cve/CVE-2026-104046 Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2478662 ExploitIssue TrackingMitigationVendor Advisory

Ailleurs

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