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.
History

Tue, 17 Mar 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 17 Mar 2026 19:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Memory safety issues in slot-based execution hash table spill
Weaknesses CWE-415
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H'}

cvssV4_0

{'score': 6.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-03-17T20:08:24.920Z

Reserved: 2026-03-17T18:55:18.644Z

Link: CVE-2026-4358

cve-icon Vulnrichment

Updated: 2026-03-17T20:06:48.279Z

cve-icon NVD

Status : Received

Published: 2026-03-17T20:16:15.030

Modified: 2026-03-17T20:16:15.030

Link: CVE-2026-4358

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.