CVE-2026-104046
mediumA flaw was found in SSSD (System Security Services Daemon).
Vendor / product: Fedoraproject — sssd
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.
CVSS
6.2
6.2 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2026-10-06 21:17
Modified: 2026-10-13 15:35
NVD status: Analyzed
Last synced 3 days ago
Verified against the source API 2026-10-27 06:58 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
fedoraproject / sssd 2.12.0
redhat / openshift_container_platform 4.0
redhat / enterprise_linux 7.0, 8.0, 9.0, 10.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://access.redhat.com/security/cve/CVE-2026-104046
Vendor advisory: https://bugzilla.redhat.com/show_bug.cgi?id=2478662
Patch / mitigation: https://bugzilla.redhat.com/show_bug.cgi?id=2478662
References
- https://access.redhat.com/security/cve/CVE-2026-104046 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2478662 secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:58 UTC · record ↗