Vulnerability library
Security checkJune 08, 2026

Axios: unbounded recursion in toFormData causes DoS via deeply nested request data

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

Medium severitynpmaxios

Check your website

Find this and other vulnerabilities with a free scan.

Your scan runs on your computer. No account required.

Description

toFormData recursively walks nested objects with no depth limit, so a deeply nested value passed as request data crashes the Node.js process with a RangeError.

Recommendation

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

  • Affected version(s): **<= 0.31.0 >= 1.0.0, < 1.15.1**
  • Patched version(s): **0.31.1 1.15.1**

References

Could your website be exposed too?

SmartScanner can check your website for Axios: unbounded recursion in toFormData causes DoS via deeply nested request data and gives you actionable findings to investigate.

Start a free scan

Related Issues

See something that needs correcting? Let us knowUpdated June 08, 2026