Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-42041

Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-287 Autenticación incorrecta
Fecha de publicación:
24/04/2026
Última modificación:
27/04/2026

Descripción

*** Pendiente de traducción *** Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution to silently suppress all HTTP error responses (401, 403, 500, etc.), causing them to be treated as successful responses. This completely bypasses application-level authentication and error handling. The root cause is that validateStatus is the only config property using the mergeDirectKeys merge strategy, which uses JavaScript's in operator — an operator that inherently traverses the prototype chain. When Object.prototype.validateStatus is polluted with () => true, all HTTP status codes are accepted as success. This vulnerability is fixed in 1.15.1 and 0.31.1.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:* 0.31.1 (excluyendo)
cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:* 1.0.0 (incluyendo) 1.15.1 (excluyendo)