CVE-2025-53548 @clerk/backend Performs Insufficient Verification of Data Authenticity

Clerk helps developers build user management. Applications that use the verifyWebhook helper to verify incoming Clerk webhooks are susceptible to accepting improperly signed webhook events. The issue was resolved in @clerk/backend 2.4.0...

PT-2025-28943 · Clerk · @Clerk/Backend

Name of the Vulnerable Software and Affected Versions: @clerk/backend versions prior to 2.4.0 Description: Applications utilizing the verifyWebhook helper to verify incoming Clerk webhooks are susceptible to accepting improperly signed webhook events. Recommendations: Upgrade to @clerk/backend...