CVE-2026-104046
A local attacker can repeatedly initiate authentication flows without completing them, causing unbounded memory consumption.
Does this matter?
Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.2 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.16% probability · 5th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- fedoraproject/sssd · redhat/openshift container platform · redhat/enterprise linux
- Source
- secalert@redhat.com
EPSS moved from 0.1% on 7 October 2026 to 0.2% on 26 October 2026.
References
- https://access.redhat.com/security/cve/CVE-2026-104046Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2478662Exploit, Issue Tracking, Mitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.