CVE-2025-53548

@clerk/backend Performs Insufficient Verification of Data Authenticity

CVSS 7.5 HIGHEPSS 0.2%CWE-345

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

clerk · javascript

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References

https://github.com/clerk/javascript/security/advisories/GHSA-9mp4-77wg-rwx9