CVE-2026-116164

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

At a glance

Severity: MEDIUM 6.3
EPSS: EPSS 0.34 % · percentile 28 (2026-10-27)
State: PUBLISHED
Published: 2026-10-25
Updated: 2026-10-25
Assigner: VulnCheck
NVD status: Awaiting Analysis

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

Version	Score	Vector	Scored by
CVSS 4.0	MEDIUM 6.3	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
CVSS 4.0	MEDIUM 6.3	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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · disclosure@vulncheck.com (Secondary)

Weaknesses (CWE)

CWE-20

European references

ENISA EUVD · EUVD-2026-109425
GCVE · GCVE-0-2026-116164

Affected products

Product	Versions
parse-community · parse-server	affected 9.0.0 < 9.10.4-alpha.3 ; unaffected 9.10.4-alpha.3
parse-community · parse-server	affected 0 < 8.6.100 ; unaffected 8.6.100

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD