CVE-2026-67321: Axios

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

axios versions 0.31.1 before 0.33.0 and 1.15.1 before 1.18.0 contain 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.

Affected products

• Axios Axios: from 0.31.1, before 0.33.0 (fixed in 0.33.0); from 1.15.1, before 1.18.0 (fixed in 1.18.0)

Published 2026-08-01. Last modified 2026-09-01.