CVE-2019-16224: Py-Lmdb Project Py-Lmdb

Critical severity, CVSS 9.8. EPSS: 1.8% chance of exploitation in the next 30 days.

An issue was discovered in py-lmdb 0.97. For certain values of md_flags, mdb_node_add does not properly set up a memcpy destination, leading to an invalid write operation. 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.