CVE-2026-116164: parse-server 9.0.0 to before 9.10.4-alpha.3, 0 to before 8.6.100

Affected technology

parse-server · 9.0.0 to before 9.10.4-alpha.3
parse-community

parse-server · 0 to before 8.6.100
parse-community

Description’s affected range: before 8.6.100 and 9.0.0 before 9.10.4-alpha.3 does not reject reserved internal field names in client object writes

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Attackers can write a reserved field that makes reads of an object fail on MongoDB, disrupting queries on that class for all users, or clear their own account lockout state and password history to bypass lockout and password policies. Vendor/CNA’s CVSS 4.0 assessment (base score 6.3/10) rates confidentiality and integrity impact as none; availability impact as low.