CVE catalog
CVE-2026-84966
DEBIAN-CVE-2026-84966
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.14% · Oct 25, 2026
An incorrect numeric type conversion in the BSON document building component of the MongoDB C++ Driver may cause a length value to be interpreted incorrectly. When an application supplies an extremely large, non-terminated field name to the builder, the library may read memory outside the intended buffer and terminate the calling process. No authentication is required, but the calling application must pass the oversized name in a specific form.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | mongo-cxx-driver | 14 | 3.10.1-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.10.2-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.11.0-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.4.1-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.6.0-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.6.1-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.6.2-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.6.3-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.6.5-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.6.6-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.6.7-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.7.0-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.7.1-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.8.0-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.8.1-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 3.9.0-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 4.0.0-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 4.1.4-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 4.4.0-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 4.5.0-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 4.5.1-1 | vulnerable |
| Debian | mongo-cxx-driver | 14 | 4.5.2-1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | mongo-cxx-driver | deb | 14 | 4.5.2-1 | Not reported | DEBIAN-CVE-2026-84966 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: