cvedb.io
CVE-2026-34076
HIGH · CVSS 7.4
EPSS exploitation probability: 0%
Published 2026-04-01T18:16:29.527 · Last modified 2026-06-17T10:38:31.453

Summary

Clerk JavaScript is the official JavaScript repository for Clerk authentication. In @clerk/hono from versions 0.1.0 to before 0.1.5, @clerk/express from versions 2.0.0 to before 2.0.7, @clerk/backend from versions 3.0.0 to before 3.2.3, and @clerk/fastify from versions 3.1.0 to before 3.1.5, the clerkFrontendApiProxy function in @clerk/backend is vulnerable to Server-Side Request Forgery (SSRF). An unauthenticated attacker can craft a request path that causes the proxy to send the application's Clerk-Secret-Key to an attacker-controlled server. This issue has been patched in @clerk/hono version 0.1.5, @clerk/express version 2.0.7, @clerk/backend version 3.2.3, and @clerk/fastify version 3.1.5.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.