Denial of Service Vulnerability in MongoDB Server
CVE-2026-13065

7.1HIGH

Key Information:

Vendor

Mongodb
Status
Mongodb Server
Vendor
CVE Published:
22 July 2026

What is CVE-2026-13065?

A vulnerability exists in MongoDB Server that allows a user with read-only privileges to create an aggregation pipeline utilizing the $linearFill window function operator alongside a specific sortBy expression. This manipulation can lead to abnormal termination of the mongod process, resulting in an effective denial of service. The root cause of this issue is the lack of adequate validation for sort specifications during execution, rendering the server susceptible to such erroneous pipeline constructions.

Affected Version(s)

MongoDB Server 7.0 < 7.0.39

MongoDB Server 8.0 < 8.0.28

MongoDB Server 8.2.0 < 8.2.12

References

https://jira.mongodb.org/browse/SERVER-127280

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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