CVE-2026-4358 — Memory safety issues in slot-based execution hash table spill
A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execut…
Published: 2026-03-17 · CVSS: 6.1 · CVSS 4.0
A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7