@clerk/backend Performs Insufficient Verification of Data Authenticity - @clerk/react-router

Description

Applications that use the verifyWebhook() helper to verify incoming Clerk webhooks are susceptible to accepting improperly signed webhook events.

Recommendation

Update the @clerk/react-router package to the latest compatible version. Followings are version details:

• Affected version(s): >= 1.5.0, < 1.6.4
• Patched version(s): 1.6.4

References

• GHSA-9mp4-77wg-rwx9
• CVE-2025-53548
• CWE-345
• CAPEC-310
• OWASP 2021-A6
• OWASP 2021-A8

Related Issues

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

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How to Secure your NodeJs Express Javascript Application - part 1

How to Secure your NodeJs Express Javascript Application - part 2

10 Secure Coding Best Practices to Follow in Every Project

Tags:

npm

@clerk/react-router