CVE-2026-104046

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 47/100
Published: 2026-10-06 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

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.

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2478662
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

47 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.2 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.16%
Raw Score 0.001600
Percentile 5.3%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00160
2026-11-13
0.00160
2026-11-12
0.00160
2026-11-10
0.00160
2026-11-09
0.00160
2026-11-08
0.00160
2026-11-07
0.00160
2026-11-06
0.00160
2026-11-05
0.00160

Intelligence Sources

mitre ref →
nvd ref →