CVE-2026-13073
Received Received - Intake

Denial of Service in MongoDB via Aggregation Command

Vulnerability report for CVE-2026-13073, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-22

Last updated on: 2026-07-22

Assigner: MongoDB, Inc.

Description

An authenticated user with read-only privileges can cause the mongod process to terminate abnormally by issuing a crafted aggregation command, resulting in denial of service for all connected clients until the process is restarted. The issue stems from an internal engine selection inconsistency triggered by a specific combination of aggregation options.

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Meta Information

Published
2026-07-22
Last Modified
2026-07-22
Generated
2026-07-23
AI Q&A
2026-07-22
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mongodb mongodb *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-617 The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

Attack-Flow Graph

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Executive Summary

This is a denial of service vulnerability in MongoDB where an authenticated user with read-only access can crash the mongod process by sending a specially crafted aggregation command. The crash occurs due to an internal engine selection inconsistency caused by specific aggregation options.

Impact Analysis

If exploited, this vulnerability can disrupt all database operations for connected clients until the mongod process is manually restarted. This leads to temporary unavailability of the database service.

Mitigation Strategies

Immediately update MongoDB to the latest patched version to address the aggregation command flaw. Restrict read-only user privileges to prevent unauthorized command execution. Monitor mongod process logs for abnormal terminations and implement failover mechanisms for high availability.

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