CVE-2026-13066 Server-Side JavaScript DBPointer BSON Serialization Memory Disclosure
Attackers can read internal process memory via DBPointer BSON serialization flaws in MongoDB server-side JavaScript, affecting deployments using this feature.
- 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-2026-13066?
CVE-2026-13066 is a high-severity 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
Improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine can result in internal process memory contents being included in data returned to the client. This constitutes an unintended information disclosure affecting deployments that use server-side JavaScript.
Weakness: CWE-843
Which versions are affected by CVE-2026-13066?
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-2026-13066?
Upgrade mongodb to a fixed version for your release line: 7.0.39, 8.0.28, 8.2.12 or 8.3.7.
Is CVE-2026-13066 being exploited?
There is no known exploitation of CVE-2026-13066 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-2026-13066, GHSA-fq6g-pppq-26pj, MINI-33cj-8556-pwhg, MINI-h22g-7p6m-hpx4, MINI-r4fc-fqwx-8c7r, MINI-vqj4-wx66-j9h3 and 1 more.