CVE-2019-16228: Py-Lmdb Project Py-Lmdb

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

An issue was discovered in py-lmdb 0.97. There is a divide-by-zero error in the function mdb_env_open2 if mdb_env_read_header obtains a zero value for a certain size field. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.

Affected products

• Py-Lmdb Project Py-Lmdb: up to and including 0.97

Published 2019-09-11. Last modified 2026-06-17.