CVE-2025-53548

@clerk/backend Performs Insufficient Verification of Data Authenticity

State: Published
Severity: 7.5 High
Published: Jul 9, 2025
Updated: Jul 9, 2025
Reserved: Jul 2, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	GitHub_M

Weaknesses

CWE-345 Insufficient Verification of Data Authenticity

Affected Products

Product	Versions
javascriptclerk	< 2.4.0Affected

References

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

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