CVE-2026-13065 MongoDB $linearFill Window Function Improper Input Validation Leading to Process Termination
A read-only user can crash the MongoDB server by crafting a specific aggregation pipeline, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-13065?
CVE-2026-13065 is a high-severity denial of service vulnerability in Mongodb Mongodb, published on 22 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-476
Which versions are affected by CVE-2026-13065?
1 open source package ship an affected version, including mongodb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mongodb Bitnami | From 7.0.0 | 7.0.39, 8.0.28, 8.2.12, 8.3.7 |
Products include Mongodb Mongodb.
How do I fix CVE-2026-13065?
Upgrade mongodb to a fixed version for your release line: 7.0.39, 8.0.28, 8.2.12 or 8.3.7.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-13065 being exploited?
There is no known exploitation of CVE-2026-13065 in the wild and no public exploit code.
Other vulnerabilities in Mongodb Mongodb
- CVE-2025-14847 MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency
- CVE-2026-82067 Auth bypass in MongoDB Server
- CVE-2026-13072 MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory Corruption
- CVE-2017-15535 Denial of service in n/a
- CVE-2026-18691 Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure
Sources
Also known as BIT-mongodb-2026-13065, GHSA-9f98-54v9-5hh9, MINI-2mqf-wq4g-82m9, MINI-5qpr-6x3f-c2cj, MINI-hmc5-q96w-9q5r, MINI-p6wg-w6cf-8269 and 1 more.