An issue in MongoDB Server's $graphLookup aggregation stage could allow an authenticated user able to issue aggregation and memory-management commands to cause an internal reference to be used after the underlying memory has been freed. This could result in a server crash or, potentially, execution of unintended code.
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Fixes
Solution
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Workaround
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References
| Link | Providers |
|---|---|
| https://jira.mongodb.org/browse/SERVER-128551 |
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History
Tue, 11 Aug 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An issue in MongoDB Server's $graphLookup aggregation stage could allow an authenticated user able to issue aggregation and memory-management commands to cause an internal reference to be used after the underlying memory has been freed. This could result in a server crash or, potentially, execution of unintended code. | |
| Title | Use-After-Free in MongoDB $graphLookup Aggregation Stage Leads to Denial of Service and Potential Remote Code Execution | |
| Weaknesses | CWE-416 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: mongodb
Published:
Updated: 2026-08-11T18:34:37.836Z
Reserved: 2026-08-03T15:53:46.316Z
Link: CVE-2026-18706
No data.
Status : Received
Published: 2026-08-11T19:17:25.360
Modified: 2026-08-11T19:17:25.360
Link: CVE-2026-18706
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OpenCVE Enrichment
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Weaknesses