CVE-2026-40175: Axios

Medium severity, CVSS 4.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Axios is a promise based HTTP client for the browser and Node.js. Versions prior to 1.15.0 and 0.3.1 are vulnerable to a specific gadget-style attack chain in which prototype pollution in a third-party dependency may be leveraged to inject unsanitized header values into outbound requests. This vulnerability is fixed in 1.15.0 and 0.3.1.

Affected products

• Axios Axios: before 0.31.0 (fixed in 0.31.0); from 1.0.0, before 1.15.0 (fixed in 1.15.0)

Published 2026-04-10. Last modified 2026-09-09.