https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2019-16228.htmlhttps://patchthecve.com/cve/CVE-2019-16228.htmlWed, 17 Jun 2026 02:21:56 +0000HIGH 7.5: 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.https://patchthecve.com/cve/CVE-2019-16227.htmlhttps://patchthecve.com/cve/CVE-2019-16227.htmlWed, 17 Jun 2026 02:21:56 +0000CRITICAL 9.8: 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.https://patchthecve.com/cve/CVE-2019-16226.htmlhttps://patchthecve.com/cve/CVE-2019-16226.htmlWed, 17 Jun 2026 02:21:56 +0000HIGH 7.5: 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.https://patchthecve.com/cve/CVE-2019-16225.htmlhttps://patchthecve.com/cve/CVE-2019-16225.htmlWed, 17 Jun 2026 02:21:56 +0000CRITICAL 9.8: An issue was discovered in py-lmdb 0.97. For certain values of mp_flags, mdb_page_touch does not properly set up mc->mc_pg[mc->top], leading to an invalid write operation. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.https://patchthecve.com/cve/CVE-2019-16224.htmlhttps://patchthecve.com/cve/CVE-2019-16224.htmlWed, 17 Jun 2026 02:21:56 +0000CRITICAL 9.8: 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.