Parse Server's OAuth2 adapter shares mutable state across providers via singleton instance
Impact
Parse Server's built-in OAuth2 auth adapter exports a singleton instance that is reused directly across all OAuth2 provider configurations. Under concurrent authentication requests for different OAuth2 providers, one provider's token validation may execute using another provider's configuration, potentially allowing a token that should be rejected by one provider to be accepted because it is validated against a different provider's policy.
Deployments that configure multiple OAuth2 providers via the oauth2: true flag are affected.
Patches
The fix ensures that a new adapter instance is created for each provider instead of reusing the singleton, so each provider's configuration is isolated.
Workarounds
There is no known workaround. If only a single OAuth2 provider is configured, the race condition cannot occur.
References
- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-2cjm-2gwv-m892
- Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.11
- Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.37
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | parse-server | >= 9.0.0, < 9.6.0-alpha.11, < 8.6.37 | 9.6.0-alpha.11, 8.6.37 |
Referencias
- https://github.com/parse-community/parse-server/security/advisories/GHSA-2cjm-2gwv-m892
- https://nvd.nist.gov/vuln/detail/CVE-2026-32242
- https://github.com/parse-community/parse-server
- https://github.com/parse-community/parse-server/releases/tag/8.6.37
- https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.11
- Vector CVSS
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N- Debilidad (CWE)
CWE-362- Plataforma
- npm
- Paquete
parse-server- Publicada
- 12.03.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-2cjm-2gwv-m892 - 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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