Citrix Security Advisory for CVE-2026-109618 and CVE-2026-109619

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Article ID: CTX697263

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Updated On:

Description

Please find below the impact status on Citrix on-prem products

Product Status
Citrix NetScaler ADC and Citrix NetScaler Gateway

Impacted. 


Please refer to the blog for more information and immediate mitigation guidance: https://community.citrix.com/techzone-blogs/110_security-updates/protecting-netscaler-management-access-from-php-cve-2026-109618-cve-2026-109619-r1640/ 

Citrix NetScaler Console Not Impacted
Citrix Analytics Not Impacted
Citrix Endpoint Analysis Not Impacted
Citrix Endpoint Management Not Impacted
Citrix Observability Not Impacted
Citrix Secure Access Not Impacted
Citrix Secure Private Access Not Impacted
Citrix Session Remote Start  Not Impacted
Citrix Virtual Apps and Desktops Not Impacted
Citrix Workspace App  Not Impacted
StoreFront Not Impacted
Citrix Provisioning (Provisioning Services) Not Impacted
Unicon eLux Scout Not Impacted
XenServer Not Impacted

 

Citrix has investigated potential impacts on Citrix-managed cloud services and confirmed that CVE-2026-109618 and CVE-2026-109619 have been addressed in such services. Customers using Citrix-managed cloud services do not need to take any action to address CVE-2026-109618 or CVE-2026-109619. 

Environment

The information on this page is being provided to you on an "AS IS" and "AS-AVAILABLE" basis. The issues described on this page may or may not impact your system(s). Cloud Software Group Holdings, Inc. and its affiliates, including Citrix Systems, Inc. (collectively, "Cloud SG") make no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. BY ACCESSING THIS PAGE, YOU ACKNOWLEDGE THAT CLOUD SG SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. Cloud SG reserves the right to change or update the information on this page at any time. Cloud SG accordingly recommends that you always view the latest version of this page. The information contained herein is being provided to you under the terms of your applicable customer agreement with Cloud SG, and may be used only for the purposes contemplated by such agreement. If you do not have such an agreement with Cloud SG, this information is provided under the cloud.com Terms of Use, and may be used only for the purposes contemplated by such Terms of Use.

Issue/Introduction

Cloud Software Group is aware of the following vulnerabilities affecting PHP

  • RCE via OOM corruption, CVE-2026-109618
  • RCE via stale global state, CVE-2026-109619

Additional Information

Changelog

2026-10-22 Initial Publication
2026-10-22 Added status for Citrix Provisioning (Provisioning Services)