PT-2026-25937 · Mongodb · Mongodb Server

Published 2026-03-17 · Updated 2026-03-17 · CVE-2026-4358

NVD

CVSS v3.1

6.4

6.4

Medium

Base vector

AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H

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.

Fix

Double Free

Weakness Enumeration

CWE-415

Related Identifiers

CVE-2026-4358

Affected Products

Mongodb Server

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-4358 · Security Note
• https://jira.mongodb.org/browse/SERVER-118849 · Note