CVE-2026-42041
Severity CVSS v4.0:
Pending analysis
Type:
CWE-287
Authentication Issues
Publication date:
24/04/2026
Last modified:
27/04/2026
Description
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.
Impact
Base Score 3.x
4.80
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:* | 0.31.1 (excluding) | |
| cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:* | 1.0.0 (including) | 1.15.1 (excluding) |
To consult the complete list of CPE names with products and versions, see this page