CVE-2026-104046CWE-770denial-of-service

CVE-2026-104046

Medium · published October 7, 2026

CVSS v3.1
6.2
EPSS
0%
Percentile
2.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00128 · 2.2th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-10-07T01:17Z
Affected products (6)
ProductVersionsFixed in
fedoraproject/sssdall versions—
redhat/openshift_container_platformall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
References (2)
https://access.redhat.com/security/cve/CVE-2026-104046 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2478662 · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 06 OCT 20:03Z
    Sssd: sssd: denial of service via incomplete identity provider authentication requests
    cvelistv5