Citrix App Layering Security Bulletin for CVE-2026-122990

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Article ID: CTX697319

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Updated On:

Description

Citrix App Layering contains the vulnerability mentioned below

CVE-ID 

Description 

Pre-conditions

CWE

CVSSv4

CVE-2026-122990

An unauthenticated attacker can bypass authentication controls to access restricted resources

Access to Citrix App Layering  management interface

CWE-287 - Improper Authentication

CVSS v4.0 Base Score: 9.3

(CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L)

 

What Customers Should Do

Cloud Software Group strongly urges affected customers of Citrix App Layering to install the relevant updated versions as soon as possible. 

  • Citrix App Layering 2603.9 and later releases

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, Inc. and its subsidiaries (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. We accordingly recommend 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

Severity - Critical

Description of Problem

A vulnerability has been discovered in Citrix App Layering. Refer below for further details.

Affected Versions

The following supported versions of Citrix App Layering are affected by the vulnerabilities: 

  • Citrix App Layering versions BEFORE 2603.9

Additional Information

Acknowledgement

Discovered by the Cloud Software Group Product Security Team using advanced AI-assisted analysis

What Citrix is Doing

Citrix is notifying customers and channel partners about this potential security issue through the publication of this security bulletin on the Citrix Knowledge Center at https://support.citrix.com/support-home/topic-article-list?trendingCategory=20&trendingTopicName=Security%20Bulletin

Obtaining Support on This Issue

If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at https://support.citrix.com/support-home/home 

Subscribe to Receive Alerts

Citrix strongly recommends that all customers subscribe to receive alerts when a Citrix security bulletin is created or modified at https://support.citrix.com/wolken-support/view/aboutsupport/my-support-alerts

Reporting Security Vulnerabilities to Citrix

Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For details on our vulnerability response process and guidance on how to report security-related issues to Citrix, please see the following webpage: https://www.cloud.com/trust-center/support 

Changelog

2026-11-12 Initial Publication