What is CVE-2026-9743?

CVE-2026-9743 is a medium-severity vulnerability, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-06-09.

How severe is CVE-2026-9743?

Medium severity. CVSS v3 base score is 6.5 out of 10.

CVE-2026-9743

CVE-2026-9743

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 reatta…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cna@mongodb.com

Frequently asked questions

What is CVE-2026-9743?: CVE-2026-9743 is a medium-severity vulnerability, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-06-09.
How severe is CVE-2026-9743?: Medium severity. CVSS v3 base score is 6.5 out of 10.