CVE-2026-42042
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's XSRF token protection logic uses JavaScript truthy/falsy semantics instead of strict boolean comparison for the withXSRFToken config property. When this property is set to any truthy non-boolean value (via prototype pollution or misconfiguration), the same-origin check (isURLSameOrigin) is short-circuited, causing XSRF tokens to be sent to all request targets including cross-origin servers controlled by an attacker. This vulnerability is fixed in 1.15.1 and 0.31.1.
How to fix
- axios axios0.31.1, 1.15.1 or later
- axios1.15.1, 0.31.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| axios axios | v < 0.31.1, 1.0.0 ≤ v < 1.15.1 | 0.31.1, 1.15.1 |
| axiosnpm | 1.0.0 ≤ v < 1.15.1, v < 0.31.1 | 1.15.1, 0.31.1 |
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Attack Surface Management
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