CVE-2026-116165

Parse Server 9.0.0 before 9.10.4-alpha.4 Unauthenticated Class Schema Deletion on MongoDB

HIGH
8.8
CVSS Score
Published: October 25, 2026 at 01:20 PM UTC
Updated: October 29, 2026 at 08:17 PM UTC
1 product affected across 1 vendorParse Server

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Parse Server before 8.6.101 and 9.0.0 before 9.10.4-alpha.4 contains a missing authorization vulnerability on MongoDB deployments that lets clients without the master key delete the stored schema of any class. Unauthenticated attackers can send REST API delete requests targeting the internal _SCHEMA collection to remove field definitions, class-level permissions, and protected fields, exposing data to unauthorized reads and modifications.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 8.6.101 (unaffected)
Vendor states this is fixed in 9.10.4-alpha.4 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulnCheck
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-862

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