CVE-2019-16226: Py-Lmdb Project Py-Lmdb

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

An issue was discovered in py-lmdb 0.97. mdb_node_del does not validate a memmove in the case of an unexpected node->mn_hi, 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.