# CVE-2026-82074: Incorrect Authorization in MongoDB Server Aggregation Framework Allows Unauthorized Read Access to Collection Data

CVE-2026-82074 is fixed in MongoDB on 1 platform by MongoDB 8.2.3 (version 8.2.3), released December 16, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-82074
- Priority: High
- CVSS: 7.1
- EPSS: 0.0036
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 8, 2026
- Weakness: CWE-863: Incorrect Authorization
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-82074

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | MongoDB | 8.2.3 | [MongoDB 8.2.3](https://patchblox.com/security/data/fix/windows-app/mongodb.server-8.2.3.md) | Dec 16, 2025 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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