CVE-2026-9737 Find command with $meta sort can lead to crash
A flaw in MongoDB Server query planning allows attackers to crash the database by sending a Find command with a specific $meta sort pattern.
- 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-2026-9737?
CVE-2026-9737 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
During query planning when reading the sort pattern in raw BSONObj form, in some places we don’t explicitly handle the meta expression case. This may lead to incorrect transformations leading to invariant failure.
Weakness: CWE-617
Which versions are affected by CVE-2026-9737?
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, 8.3.7, 9.0.2 |
Products include Mongodb Mongodb.
How do I fix CVE-2026-9737?
Upgrade mongodb to a fixed version for your release line: 7.0.39, 8.0.28, 8.3.7 or 9.0.2.
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-2026-9737 being exploited?
There is no known exploitation of CVE-2026-9737 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-2026-9737, GHSA-528v-8qvj-8g29, MINI-3hh9-q9xg-cq2q, MINI-j9xp-vcpv-p7pw, MINI-mvfj-77f6-wqm4, MINI-wrx5-756w-842q and 1 more.