A use-after-free in the aggregation framework of MongoDB Server can occur when certain expressions are evaluated in an aggregation sub-pipeline. The condition can be caused by an authenticated user with read privileges, and may result in the server terminating unexpectedly.
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Fixes
Solution
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Workaround
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References
| Link | Providers |
|---|---|
| https://jira.mongodb.org/browse/SERVER-136285 |
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History
Tue, 10 Nov 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A use-after-free in the aggregation framework of MongoDB Server can occur when certain expressions are evaluated in an aggregation sub-pipeline. The condition can be caused by an authenticated user with read privileges, and may result in the server terminating unexpectedly. | |
| Title | Post-authentication use-after-free in MongoDB Server aggregation sub-pipelines | |
| Weaknesses | CWE-416 | |
| References |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: mongodb
Published:
Updated: 2026-11-10T20:17:45.700Z
Reserved: 2026-11-02T22:54:38.779Z
Link: CVE-2026-120821
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses