What is CVE-2026-9752?

CVE-2026-9752 is a medium-severity vulnerability in Mongodb, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-06-09.

How severe is CVE-2026-9752?

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

NULL pointer dereference in Mongodb

CVE-2026-9752

An authorized user could trigger a server crash by running a query with a 2dsphere index on a field that stores a GeoJSON GeometryCollection containing a Polygon with a strict-winding CRS. Strict-winding polygons are intentionally unsuppo…

EPSS: 0.003 (18.9th percentile) — read the EPSS interpretation.

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.

Affected products

Mongodb
Mongodb Server — versions 8.3.0, 8.2.0, 8.0.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cna@mongodb.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-9752?: CVE-2026-9752 is a medium-severity vulnerability in Mongodb, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-06-09.
How severe is CVE-2026-9752?: Medium severity. CVSS v3 base score is 6.5 out of 10.