Out-of-bounds Write Affecting lmdb package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.54% (72nd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LMDB-17803033
  • published3 Jul 2026
  • disclosed11 Sept 2019

Introduced: 11 Sep 2019

CVE-2019-16226  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable lmdb.

NVD Description

Note: Versions mentioned in the description apply only to the upstream lmdb package and not the lmdb package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1