#VU125001 Race condition in Parse Server - CVE-2026-32242
Published: April 6, 2026
Parse Server
Parse Community
Description
The vulnerability allows a remote attacker to bypass OAuth2 token validation and gain unauthorized access.
The vulnerability exists due to a race condition in the built-in OAuth2 auth adapter when handling concurrent authentication requests for different OAuth2 providers. A remote attacker can send concurrent authentication requests to cause one provider's token validation to use another provider's configuration to bypass OAuth2 token validation and gain unauthorized access.
Only deployments that configure multiple OAuth2 providers via the oauth2: true flag are vulnerable.