CVE-2026-82057 Memory corruption in MongoDB Server
An authenticated user can crash the MongoDB server by creating a collection with incompatible WiredTiger storage options, causing persistent 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-2026-82057?
CVE-2026-82057 is a high-severity memory corruption vulnerability in Mongodb Mongodb, published on 8 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security issue was discovered in MongoDB where an authenticated user with readWrite privileges could crash the mongod server process. By specifying a custom WiredTiger storage configuration option with an incompatible value during collection creation, a user could cause a type confusion in the storage engine layer. When documents were subsequently read from the misconfigured collection, the resulting mismatch in expected data format led to corrupted memory interpretation and a server crash. The crafted collection configuration persists across restarts, requiring manual operator intervention to remediate.
Weakness: CWE-843
Which versions are affected by CVE-2026-82057?
1 open source package ship an affected version, including mongodb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mongodb Bitnami | From 8.3.0 | 8.3.9 |
Products include Mongodb Mongodb.
How do I fix CVE-2026-82057?
Upgrade mongodb to 8.3.9 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-82057 being exploited?
There is no known exploitation of CVE-2026-82057 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-2026-82057, GHSA-rchq-qm85-w78g, MINI-w5r3-pmmc-mqq3, UBUNTU-CVE-2026-82057.