Vulnerability · Published Oct 25, 2026 · Assigned by VulnCheck

CVE-2026-116164Parse Server 9.0.0 before 9.10.4-alpha.3 Reserved Field Name Injection via Object Writes

Medium 6.3

In plain English

A medium-severity improper input validation in parse-server from parse-community. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 4.0)6.3Medium

Exploit odds (30 days)0.3%top 72.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
parse-community	parse-server	9.0.0 – before 9.10.4-alpha.3
parse-community	parse-server	0 – before 8.6.100

Weakness: CWE-20 · Vector: 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

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 Writes third-party-advisory