CVE-2026-9743 | BDVDB-2026-338764 Detail

Description#

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.

Impact#

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Exploit#

History#

1. Version 12026-06-09Record published in the CVE List.
2. Version 22026-06-10Most recent update recorded in the CVE List.