---
id: CVE-2026-14476
title: A path traversal flaw was found in SSSD's AD GPO provider
summary: >-
  A path traversal flaw was found in SSSD's AD GPO provider. The
  ad_gpo_extract_smb_components() function does not sanitize .. sequences in the
  gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management
  access to write file…
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-23
published: '2026-07-07'
updated: '2026-07-27'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-14476'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:41937'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:42122'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:46482'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-14476'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2496581'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00668
epssPercentile: 0.49822
ingestedAt: '2026-07-27T12:18:01.806Z'
---

## Overview

A path traversal flaw was found in SSSD's AD GPO provider. The ad_gpo_extract_smb_components() function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL configurations with SELinux enforcing, this can be used to inject Kerberos configuration leading to authentication bypass.

## Remediation

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