MongoDB Server Aggregation Auth Bypass via Incorrect Authorization Evaluation
CVE-2026-82074 Published on September 8, 2026
Incorrect Authorization in MongoDB Server Aggregation Framework Allows Unauthorized Read Access to Collection Data
MongoDB Server contains an incorrect authorization vulnerability in the aggregation framework. An authenticated user with minimal privileges can craft a specially formatted aggregation request that causes the server's authorization subsystem to evaluate a different operation than what is actually executed, resulting in unauthorized read access to collection data within the target database.
Vulnerability Analysis
CVE-2026-82074 is exploitable 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-2026-82074 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-82074
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Affected Versions
MongoDB Server:- Version 8.0.0 and below 8.0.30 is affected.
- Version 7.0.0 and below 7.0.41 is affected.