medium6.5
CVE-2026-82057
A security issue was discovered in MongoDB where an authenticated user with readWrite privileges could crash the mongod server process.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mongodb | Mongodb | from 8.3.0 before 8.3.9 |