CVE-2026-84965
MEDIUM
NVD
CVSS Score
5.1
Severity
MEDIUM
Published
Sep 03, 2026
Vendor
unknown
Description
An integer wraparound in an allocation size calculation in the BSON library's JSON parsing code can cause a buffer to be released while a following copy operation still writes through the stale pointer. On builds where sizes are 32 bits, an unauthenticated party able to supply a sufficiently large JSON input to an application that links the library may cause that application to terminate unexpectedly, resulting in denial of service.