CVE-2026-84970

score

0.2

cvss

6.2

epss

0.1%

published

2026-09-03

kev added

—

first seen

2026-10-21

MongoDB C++ Driver BSON library contains a numeric truncation weakness in JSON parsing, caused by improper handling of large input, letting attackers cause memory reads beyond buffer or process termination, exploit requires attacker control of input text.