CVE-2026-116164

Parse Server 9.0.0 before 9.10.4-alpha.3 Reserved Field Name Injection via Object Writes

State: Published
Severity: 6.3 Medium
Published: Oct 25, 2026
Updated: Oct 25, 2026
Reserved: Oct 25, 2026

Description

Parse Server 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, allowing clients to store or clear internal fields. 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.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	VulnCheck

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
parse-serverparse-community	9.0.0 to before 9.10.4-alpha.3Affected 9.10.4-alpha.3Not affected
parse-serverparse-community	before 8.6.100Affected 8.6.100Not affected

References

GitHub Security Advisory (GHSA-gwrq-q25v-g8mr)vendor-advisory
VulnCheck Advisory: Parse Server 9.0.0 before 9.10.4-alpha.3 Reserved Field Name Injection via Object Writesthird-party-advisory

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