CVE-2026-42264 — Axios: Prototype pollution read-side gadgets in HTTP adapter allow credential injection and request hijacking
Axios is a promise based HTTP client for the browser and Node.js. From version 1.0.0 to before version 1.15.2, fFive config properties (auth, baseURL, socketPath, beforeRedirect…
Published: 2026-05-08 · CVSS: 7.4 · CVSS 3.1
Axios is a promise based HTTP client for the browser and Node.js. From version 1.0.0 to before version 1.15.2, fFive config properties (auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser) in the HTTP adapter are read via direct property access without hasOwnProperty guards, making them exploitable as prototype pollution gadgets. When Object.prototype is polluted by another dependency in the same process, axios silently picks up these polluted values on every outbound HTTP request. This issue has been patched in version 1.15.2.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7