Parse Server
CVE-2026-32098
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessSubscribe to LiveQuery with WHERE clause
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ExploitReference protected field via dot-notation or $regex
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ExecutionObserve event delivery pattern
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ImpactInfer protected field values through boolean oracle
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK
2 techniques across 2 tactics: Collection, Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Parse Server instances with protectedFields configured on classes and LiveQuery subscriptions enabled. No authentication required against default deployments exposing LiveQuery endpoints. |
| Impact | Exposed information (credentials, internal paths, user data, configuration) can be leveraged for further attacks or regulatory violations. |
| Exploit ScenarioDerived | An attacker triggers error conditions or accesses improperly protected endpoints to extract sensitive internal information from the application. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Impact
An attacker can exploit LiveQuery subscriptions to infer the values of protected fields without directly receiving them. By subscribing with a WHERE clause that references a protected field (including via dot-notation or $regex), the attacker can observe whether LiveQuery events are delivered for matching objects. This creates a boolean oracle that leaks protected field values. The attack affects any class that has both protectedFields configured in Class-Level Permissions and LiveQuery enabled.
Patches
The fix adds validation of the LiveQuery subscription WHERE clause against the class's protected fields, mirroring the existing REST API validation. If a subscription's WHERE clause references a protected field directly, via dot-notation, or inside $or / $and / $nor operators, the subscription is rejected with a permission error. This is applied during subscription creation, so existing event delivery paths are not affected.
Workarounds
Disable LiveQuery for classes that use protectedFields in their Class-Level Permissions, or remove protectedFields from classes that require LiveQuery.
References
- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-j7mm-f4rv-6q6q
- Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.9
- Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.35
Earlier versions of this analysis (1)
RemediationAI
Implement proper access controls. Sanitize error messages in production. Review logging practices to avoid capturing sensitive data.
Affected Packages
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.
Technical ContextAI · show details
Information disclosure occurs when an application inadvertently reveals sensitive data to unauthorized actors through error messages, logs, or improper access controls. This vulnerability is classified as Information Exposure (CWE-200).
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.9 and 8.6.35, an attacker can exploit LiveQuery subscriptions to infer the values of protected fields without directly receiving them. By subscribing with a WHERE clause that references a protected field (including via dot-notation or $regex), the attacker can observe whether LiveQuery events are delivered for matching objects. This creates a boolean oracle that leaks protected field values. The attack affects any class that has both protectedFields configured in Class-Level Permissions and LiveQuery enabled. This vulnerability is fixed in 9.6.0-alpha.9 and 8.6.35.
Executive ViewAI
A vulnerability in Parse Server's LiveQuery feature allows attackers to bypass access controls and discover sensitive protected field values through subscription manipulation. Organizations using Parse Server with both protected fields and LiveQuery enabled risk unauthorized data exposure and potential compliance violations.
Disable LiveQuery feature entirely if not critical to operations; restrict LiveQuery endpoint access via network firewall/WAF to trusted applications only; implement API rate limiting and anomaly detection on subscription requests; conduct audit logs review for suspicious LiveQuery subscription patterns; apply principle of least privilege to service accounts accessing LiveQuery; consider temporary application of query filtering at the API gateway layer to block WHERE clauses targeting protected fields.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)GitHub Advisory
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GHSA-j7mm-f4rv-6q6q
NVD
CVE.org
EPSS
VulDB
Exploit-DB