CVE-2026-67321

Description

axios before 0.33.0 contains an incomplete depth-limit bypass in toFormData.js when serializing objects with top-level keys ending in '{}'. Attackers who control object keys and nested values passed to axios form or parameter serialization can trigger a RangeError from JSON.stringify, causing denial of service in the affected request path.

References

• https://github.com/axios/axios/security/advisories/GHSA-hcpx-6fm6-wx23
• https://www.vulncheck.com/advisories/axios-before-denial-of-service-via-maxdepth-bypass