CVE-2026-84963
Fixed in a distro release EPSS <1%CVSS 5.3
An incorrect numeric conversion in the JSON parsing component of the MongoDB C Driver's BSON library may cause an unusually large text value to be silently shortened, or the corresponding field to be omitted, while the parsing operation still reports success and returns no error. An unauthenticated party who can supply the input processed by an application that uses this component may cause that application to hold data that does not match what was submitted, which may result in unintended alteration of data.
Products: mongodb c_driver
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | mongo-c-driver | no fix |
| Debian 13 | mongo-c-driver | no fix |
| Debian 14 | mongo-c-driver | 2.5.2-1 |
| Ubuntu 26.04 LTS | mongo-c-driver | no fix |
| Ubuntu 26.10 | mongo-c-driver | no fix |
| Ubuntu Pro 20.04 LTS | mongo-c-driver | no fix |
| Ubuntu Pro 22.04 LTS | mongo-c-driver | no fix |
| Ubuntu Pro 24.04 LTS | mongo-c-driver | no fix |
| openSUSE Tumbleweed | mongo-c-driver | 2.5.2-1.1 |