Vulnerability Details 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 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 14.1%
CVSS Severity
CVSS v3 Score 6.5