A use-after-free in the replication component of MongoDB Server can occur when a newly elected replica set primary completes catch-up. The condition can be caused by requests that do not require authentication, and may result in the server terminating unexpectedly or, under certain conditions, arbitrary code execution in the context of the server process. Replica set members are affected, including the shard and config server replica set members of sharded clusters; standalone mongod instances are not.
Metrics
Affected Vendors & Products
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References
History
Tue, 10 Nov 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A use-after-free in the replication component of MongoDB Server can occur when a newly elected replica set primary completes catch-up. The condition can be caused by requests that do not require authentication, and may result in the server terminating unexpectedly or, under certain conditions, arbitrary code execution in the context of the server process. Replica set members are affected, including the shard and config server replica set members of sharded clusters; standalone mongod instances are not. | |
| Title | Pre-authentication use-after-free in MongoDB Server replica set primary catch-up | |
| Weaknesses | CWE-416 | |
| References |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: mongodb
Published:
Updated: 2026-11-10T20:23:51.424Z
Reserved: 2026-10-28T02:46:37.683Z
Link: CVE-2026-118383
Vulnrichment
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NVD
Status : Awaiting Analysis
Published: 2026-11-10T21:18:58.980
Modified: 2026-11-10T22:08:59.707
Link: CVE-2026-118383
Redhat
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OpenCVE Enrichment
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Weaknesses