low3.7
CVE-2026-84969
A memory-handling error in the BSON-to-JSON conversion helpers of the MongoDB C Driver can write a small number of bytes past the end of a heap buffer when a b…
Impact
A memory-handling error in the BSON-to-JSON conversion helpers of the MongoDB C Driver can write a small number of bytes past the end of a heap buffer when a binary field is encoded and the output is cut short at a caller-configured length limit. A party who supplies the document content, with no privileges on the application that links the driver, may cause a small amount of data outside the intended buffer to be altered.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mongodb | C Driver | from 1.30.0 before 1.30.9 from 2.0.0 before 2.5.2 |