CVE-2019-16227: Py-Lmdb Project Py-Lmdb

Critical severity, CVSS 9.8. EPSS: 2% chance of exploitation in the next 30 days.

An issue was discovered in py-lmdb 0.97. For certain values of mn_flags, mdb_cursor_set triggers a memcpy with an invalid write operation within mdb_xcursor_init1. 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.