CVE-2026-13073: CWE-617: Reachable Assertion in MongoDB MongoDB Server
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-13073) affects MongoDB Server version 8.0 and involves a reachable assertion (CWE-617) that can be triggered by an authenticated user with read-only privileges. By sending a crafted aggregation command with a specific combination of options, the internal engine selection logic becomes inconsistent, causing the mongod process to terminate abnormally. This results in a denial of service condition impacting all clients connected to the server until manual restart of the process.
Potential Impact
An attacker with authenticated read-only access can cause the MongoDB server process to crash, resulting in denial of service for all connected clients. There is no indication of data corruption or unauthorized data access, but availability is impacted until the server is restarted.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Administrators should monitor vendor advisories for updates. Until a fix is released, consider restricting aggregation command usage or limiting read-only user privileges where feasible to reduce risk.
CVE-2026-13073: CWE-617: Reachable Assertion in MongoDB MongoDB Server
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.
CVSS v4.0
Score 5.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-13073) affects MongoDB Server version 8.0 and involves a reachable assertion (CWE-617) that can be triggered by an authenticated user with read-only privileges. By sending a crafted aggregation command with a specific combination of options, the internal engine selection logic becomes inconsistent, causing the mongod process to terminate abnormally. This results in a denial of service condition impacting all clients connected to the server until manual restart of the process.
Potential Impact
An attacker with authenticated read-only access can cause the MongoDB server process to crash, resulting in denial of service for all connected clients. There is no indication of data corruption or unauthorized data access, but availability is impacted until the server is restarted.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Administrators should monitor vendor advisories for updates. Until a fix is released, consider restricting aggregation command usage or limiting read-only user privileges where feasible to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-06-23T18:00:17.815Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6123209c2644c7f89b2ccf
Added to database: 07/22/2026, 20:08:00 UTC
Last enriched: 07/22/2026, 20:23:17 UTC
Last updated: 07/23/2026, 02:51:54 UTC
Views: 11
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