CVE-2026-104046
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.
- Score
- CVSS 3.1 6.2 Medium
- Status
- Analyzed - secalert@redhat.com
- Published
- 2026-10-06
- Last modified
- 2026-10-13
- Weaknesses
- CWE-770
Affected products
- Sssd (Fedoraproject)
- Enterprise Linux (Redhat)
- Openshift (Redhat)
- Openshift Container Platform (Redhat)
References
- https://access.redhat.com/security/cve/CVE-2026-104046
- https://bugzilla.redhat.com/show_bug.cgi?id=2478662