CVE-2026-56152: Elastic Defend Unauthorized Disclosure via ACL Bypass
CVE-2026-56152 Published on July 1, 2026
Incorrect Authorization in Elastic Defend Leading to Information Disclosure
Incorrect Authorization (CWE-863) in Elastic Defend can lead to unauthorized information disclosure via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Under certain conditions, a low-privileged authenticated user can access response action data that they are not authorized to view.
Vulnerability Analysis
CVE-2026-56152 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-56152 has been classified to as an AuthZ vulnerability or weakness.
Affected Versions
Elastic Defend:- Version 9.3.0, <= 9.3.1 is affected.
- Version 8.6.0, <= 8.19.12 is affected.
- Version 9.0.0, <= 9.2.6 is affected.