cvedb.io
CVE-2026-9743
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-06-09T23:17:03.853 · Last modified 2026-06-17T11:05:36.863

Summary

In MongoDB Server 8.0, an aggregation stage can leave its _subPipeline field null during processing of certain pipelines. If a getMore is subsequently issued on the same cursor, the server may dereference this null sub-pipeline when reattaching to the operation context, accessing an invalid address and crashing the process. This issue allows an authenticated user who can run aggregation pipelines to cause a denial of service by issuing a specially crafted aggregation followed by getMore on affected versions.

Affected products

mongodb — mongodb

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.