high8.8
CVE-2026-106433
Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document conta…
Impact
Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document, can cause invalid memory access and invalid frees in the client process. This can terminate the application or corrupt process memory.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mongodb | Libmongocrypt | from 1.5.0 before 1.20.5 |