CVE-2026-1847 HIGH

CVE-2026-1847: MongoDB Server may crash when inserting large documents

Vendor Mongodb Inc
Product MongoDB Server
Weakness CWE-770 · Uncontrolled resource consumption
Published February 10, 2026
Last update February 10, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Inserting certain large documents into a replica set could lead to replica set secondaries not being able to fetch the oplog from the primary. This could stall replication inside the replica set leading to server crash.

Key dates

02Disclosure timeline

February 10, 2026 CVE published
February 10, 2026 Record updated