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.
History

Tue, 13 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Fedoraproject
Fedoraproject sssd
CPEs cpe:2.3:a:fedoraproject:sssd:2.12.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Vendors & Products Fedoraproject
Fedoraproject sssd

Fri, 09 Oct 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat openshift Container Platform
Sssd
Sssd sssd
Vendors & Products Redhat openshift Container Platform
Sssd
Sssd sssd

Fri, 09 Oct 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 07 Oct 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 06 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
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.
Title Sssd: sssd: denial of service via incomplete identity provider authentication requests
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-770
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-10-06T20:03:06.080Z

Updated: 2026-10-09T01:45:14.521Z

Reserved: 2026-10-01T17:25:56.761Z

Link: CVE-2026-104046

cve-icon Vulnrichment

Updated: 2026-10-09T01:45:10.886Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-06T21:17:04.300

Modified: 2026-10-13T15:35:28.760

Link: CVE-2026-104046

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-06T15:44:37Z

Links: CVE-2026-104046 - Bugzilla