---
id: CVE-2026-104032
title: A flaw was found in SSSD
summary: >-
  A flaw was found in SSSD. An unprivileged local user can repeatedly request
  master automount map updates through the autofs responder due to missing
  authorization checks. This triggers global cache invalidation and forces
  repeated lookup…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-408
vendor: Red Hat
product: sssd
affected:
  - sssd (all versions)
  - sssd
  - sssd (all versions)
  - sssd (all versions)
  - sssd (all versions)
  - openshift/ose-rhel-coreos-8 (all versions)
  - openshift/ose-rhel-coreos-9 (all versions)
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T15:09:20.387'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104032'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-104032'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2479381'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-104032.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-104032'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104032'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-06T13:32:38.442451Z'
ingestedAt: '2026-10-06T00:37:36.245Z'
epss: 0.00095
epssPercentile: 0.00643
---

## Overview

A flaw was found in SSSD. An unprivileged local user can repeatedly request master automount map updates through the autofs responder due to missing authorization checks. This triggers global cache invalidation and forces repeated lookups to backend directory providers, leading to a Denial of Service (DoS) from degraded automount availability and elevated resource consumption.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-104032.json)