CVE-2026-4358
No fix known EPSS <1%CVSS 6.4
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.
Products: MongoDB Inc. MongoDB Server
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu Pro 14.04 LTS | mongodb | no fix |
| Ubuntu Pro 16.04 LTS | mongodb | no fix |
| Ubuntu Pro 18.04 LTS | mongodb | no fix |
| Ubuntu Pro 20.04 LTS | mongodb | no fix |