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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-9752

GeometryCollection with strict-winding polygon causes server crash during 2dsphere index key generation

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

MongoDB MongoDB Server

Default version status: unaffected

  • 8.3.0 to < 8.3.3affected
  • 8.2.0 to < 8.2.10affected
  • 8.0.0 to < 8.0.24affected
  • 7.0.0 to < 7.0.35affected

References