CVE-2026-13065 HIGH

CVE-2026-13065: MongoDB $linearFill Window Function Improper Input Validation Leading to Process Termination

Vendor Mongodb
Product MongoDB Server
Weakness CWE-476
Published July 22, 2026
Last update July 23, 2026

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

A user with read-only privileges is able to craft an aggregation pipeline using the $linearFill window function operator with a specific sortBy expression type to cause the mongod process to terminate abnormally, resulting in denial of service. The issue stems from insufficient validation of sort specifications during execution.

Key dates

02Disclosure timeline

July 22, 2026 CVE published
July 23, 2026 Record updated