Vulnerability library
Security checkOctober 07, 2026

Payload: Remote Code Execution through first-register

Understand the exposure, see the recommended fix, and check whether your own website has related weaknesses.

High severitynpmpayload

Check your website

Find this and other vulnerabilities with a free scan.

Your scan runs on your computer. No account required.

Description

A crafted request to the public first-register operation can be used to perform a RCE exploit.

You are affected if:

  • You use local auth strategy and your application remains without an initial user created

Recommendation

Update the payload package to the latest compatible version. Followings are version details:

  • Affected version(s): **>= 4.0.0-canary.0, < 4.0.0-canary.34 < 3.90.0**
  • Patched version(s): **4.0.0-canary.34 3.90.0**

References

Could your website be exposed too?

SmartScanner can check your website for Payload: Remote Code Execution through first-register and gives you actionable findings to investigate.

Start a free scan

Related Issues

See something that needs correcting? Let us knowUpdated October 07, 2026