CVE-2026-4148

A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issues a specially crafted $lookup or $graphLookup aggregation pipeline.

Score

CVSS 3.1 8.8 High

Status

Analyzed - cna@mongodb.com

Published

2026-03-17

Last modified

2026-03-18

Weaknesses

CWE-416

Affected products

• Mongodb (Mongodb)
• Mongodb Server (Mongodb Inc)

References

• https://jira.mongodb.org/browse/SERVER-119319