MongoDB Server Aggregation Bypass View Auth via Atlas Search
CVE-2026-82073 Published on September 8, 2026
Improper Validation in MongoDB Server Aggregation Framework Allows Authorization Bypass and Unauthorized Collection Access with Atlas Search
A security issue in the MongoDB Server aggregation framework allows an authenticated user with limited read privileges to bypass view-level authorization checks and access data from unauthorized collections when Atlas Search features are in use. The issue stems from insufficient validation of an internal command parameter that can be set by external clients, causing a security check to be improperly skipped.
Vulnerability Analysis
CVE-2026-82073 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and 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-2026-82073 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-82073
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Affected Versions
MongoDB Server:- Version 8.3.0 and below 8.3.9 is affected.