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Mongodb Server CVE-2026-9752

| EUVDEUVD-2026-35851 HIGH
NULL Pointer Dereference (CWE-476)
2026-06-09 mongodb GHSA-wpr8-m35f-2w5c
7.1
CVSS 4.0 · Vendor: mongodb
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Severity by source

Vendor (mongodb) PRIMARY
7.1 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (mongodb) · only source for this CVE.

CVSS VectorVendor: mongodb

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

7
Patch available
Jun 10, 2026 - 02:01 EUVD
Analysis Updated
Jun 09, 2026 - 23:31 vuln.today
v3 (cvss_changed)
Analysis Updated
Jun 09, 2026 - 23:31 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Jun 09, 2026 - 23:22 vuln.today
cvss_changed
Severity Changed
Jun 09, 2026 - 23:22 NVD
MEDIUM HIGH
CVSS changed
Jun 09, 2026 - 23:22 NVD
6.5 (MEDIUM) 7.1 (HIGH)
Analysis Generated
Jun 09, 2026 - 23:21 vuln.today

DescriptionCVE.org

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 unsupported for indexing, but the guard that rejects them does not inspect members of a GeometryCollection, allowing the unsafe path to be reached which ends with an ensuing null-pointer dereference.

AnalysisAI

Denial of service in MongoDB Server allows an authenticated user to crash the database process by issuing a geospatial query backed by a 2dsphere index where the indexed field holds a GeoJSON GeometryCollection containing a Polygon defined with a strict-winding CRS. The flaw is a CWE-476 null pointer dereference reached because the rejection guard for unsupported strict-winding polygons does not recurse into GeometryCollection members. No public exploit identified at time of analysis and the issue is not on the CISA KEV list.

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CVE-2026-9752 vulnerability details – vuln.today

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