Parse Server allows public `explain` queries which may expose sensitive database performance information and schema details
Impact
The MongoDB explain() method provides detailed information about query execution plans, including index usage, collection scanning behavior, and performance metrics. Parse Server permits any client to execute explain queries without requiring the master key. This exposes:
- Database schema structure and field names
- Index configurations and query optimization details
- Query execution statistics and performance metrics
- Potential attack vectors for database performance exploitation
Patches
A new databaseOptions.allowPublicExplain configuration option has been introduced that allows to restrict explain queries to the master key. The option defaults to true for now to avoid a breaking change in production systems that depends on public explain availability. In addition, a security warning is logged when the option is not explicitly set, or set to true. In a future major release of Parse Server, the default will change to false.
Workarounds
Implementing middleware to block explain queries from non-master-key requests, or monitor and alert on explain query usage in production environments.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | parse-server | < 8.5.0-alpha.5 | 8.5.0-alpha.5 |
Referencias
- https://github.com/parse-community/parse-server/security/advisories/GHSA-7cx5-254x-cgrq
- https://nvd.nist.gov/vuln/detail/CVE-2025-64502
- https://github.com/parse-community/parse-server/pull/9890
- https://github.com/parse-community/parse-server/commit/4456b02280c2d8dd58b7250e9e67f1a8647b3452
- https://github.com/parse-community/parse-server
- Vector CVSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N- Debilidad (CWE)
CWE-201- Plataforma
- npm
- Paquete
parse-server- Publicada
- 13.11.2025
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-7cx5-254x-cgrq - CC BY 4.0
Historial de vulnerabilidades: parse-server
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 116
- Primera → última
- 06.2019 06.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 17
- Alta 49
- Media 40
- Baja 10
Divulgaciones por año
- 2019: 2
- 2020: 4
- 2021: 4
- 2022: 12
- 2023: 5
- 2024: 4
- 2025: 6
- 2026: 79
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Parse Server allows public `explain` queries which may expose sensitive database performance information and schema details esta entrada
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