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Parse Server CVE-2026-31800

CRITICAL
Missing Authorization (CWE-862)
2026-03-10 security-advisories@github.com GHSA-7xg7-rqf6-pw6c
Node.js Parse Server Parseplatform
9.1
CVSS 3.1 · GitHub Advisory
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Access Parse Server REST API
  2. Exploit
    Query /classes/_GraphQLConfig endpoint
  3. Execution
    Read GraphQL configuration without authentication
  4. Impact
    Modify or delete configuration data

Vulnerability Assessment

Weakness
CWE
CWE-862
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Exploitation Conditions

Parse Server versions prior to 9.5.2-alpha.12 (v9.x) or 8.6.25 (v8.x) with REST API enabled. Generic /classes/ routes must be accessible without master key authentication. No special configuration required — vulnerability exists in default Parse Server deployments.
Impact

CVSS 9.1 with patch.
Exploit ScenarioDerived

Unauthorized operations on Parse data.
Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Parse Server has a third vulnerability with missing authorization enabling unauthorized operations.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:55 CVSS 9.1

Third Parse Server vulnerability — missing authorization.

RemediationAI

Update Parse Server. All three vulnerabilities must be patched.

Affected Packages

npm parse-server fix: 8.6.25, 9.5.2-alpha.12

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in npm

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Technical ContextAI · show details

CWE-862 in Parse Server.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

GitHub Advisory PRIMARY 9.1 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

2
Patch released
Mar 11, 2026 - 18:30 nvd
Patch available
CVE Published
Mar 10, 2026 - 21:16 nvd
CRITICAL 9.1

DescriptionGitHub Advisory

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.12 and 8.6.25, the _GraphQLConfig and _Audience internal classes can be read, modified, and deleted via the generic /classes/_GraphQLConfig and /classes/_Audience REST API routes without master key authentication. This bypasses the master key enforcement that exists on the dedicated /graphql-config and /push_audiences endpoints. An attacker can read, modify and delete GraphQL configuration and push audience data. This vulnerability is fixed in 9.5.2-alpha.12 and 8.6.25.

Executive ViewAI

Why It Matters

A critical vulnerability in Parse Server (CVSS 9.1) poses an immediate risk to organizations running this open-source backend platform, potentially allowing unauthorized access to application data and infrastructure. With a patch already available, this represents an urgent remediation priority to prevent exploitation before attackers weaponize the low (0.1%) prevalence advantage window.

Business Impact: Severe
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.1%
Top 77% exploitable
Data Quality
5 sources
Confidence: Medium
NVD CVE.org EPSS GitHub VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Affected Products (CPE)GitHub Advisory

cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha1:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha10:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha11:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha2:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha3:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha4:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha5:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha6:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha7:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha8:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha9:*:*:*:node.js:*:*

Related Vulnerabilities in Parse Server Multiple Security Flaws

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Same weakness CWE-862 – Missing Authorization

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References

Advisories & patches
PATCH https://github.com/parse-community/parse-server/security/advisories/GHSA-7xg7-rqf6-pw6c ADVISORY https://vuldb.com/?id.350237 REF https://github.com/parse-community/parse-server/releases/tag/8.6.25 REF https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.12

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