Parse Server
CVE-2026-30835
MEDIUM
GHSA-9cp7-3q5w-j92g
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Error message sanitization
MITRE ATT&CK
1 technique across 1 tactic: Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 5.3 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to compromise the affected system. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Mar 12, 2026
Parse Server versions prior to 8.6.7 and 9.5.0-alpha.6 expose sensitive database information through unfiltered error responses when processing malformed regex queries. An unauthenticated attacker can craft specially crafted query parameters to leak database internals including error messages, cluster details, and topology information. Patches are available for affected versions.
Earlier versions of this analysis (1)
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.7 and 9.5.0-alpha.6, malformed $regex query parameter (e.g. [CVSS 5.3 MEDIUM]
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
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
Classified as CWE-209 (Error Message Information Leak). Affects Parse-Server. Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.7 and 9.5.0-alpha.6, malformed $regex query parameter (e.g. [abc) causes the database to return a structured error object that is passed unsanitized through the API response. This leaks database internals such as error messages, error codes, code names, cluster timestamps, and topology details. The vulnerability is exploitable by any client that can send query requests,
Know when Parse Server gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 versions 8.6.7 and 9.5.0-alpha.6, malformed $regex query parameter (e.g. [abc) causes the database to return a structured error object that is passed unsanitized through the API response. This leaks database internals such as error messages, error codes, code names, cluster timestamps, and topology details. The vulnerability is exploitable by any client that can send query requests, depending on the deployment's permission configuration. This issue has been patched in versions 8.6.7 and 9.5.0-alpha.6.
Executive ViewAI
Organizations using Parse Server should be aware of moderate risk from CVE-2026-30835 rated CVSS 5.3. Exploitation could compromise the security of affected deployments. A patch is available and should be applied during regular vulnerability management.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
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
Affected Products (CPE)GitHub Advisory
More in Parse Server
View allParse Server is an open source http web server backend. Rated critical severity (CVSS 10.0), this vulnerability is remot
Unauthenticated query injection in Parse Server before 9.6.0-alpha.12/8.6.38. PoC available.
Parse Server has an incorrect authorization vulnerability enabling unauthorized data access across applications.
### Impact Parse Server's built-in OAuth2 auth adapter exports a singleton instance that is reused directly across all
Parse Server has a CVSS 10.0 access control vulnerability enabling complete bypass of all data access restrictions.
parse-server is a Parse Server for Node.js / Express. Rated critical severity (CVSS 10.0), this vulnerability is remotel
Authentication bypass in Parse Server allows unauthenticated access to protected API endpoints. Parse Server is a popula
SQL injection in Parse Server before 9.6.0-alpha.2/8.6.28.
SQL injection in Parse Server before 9.6.0-alpha.5/8.6.31. Third Parse Server SQLi.
SQL injection in Parse Server before 9.6.0-alpha.5/8.6.31.
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Rated critical s
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Rated critical s
Exploit-DB