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.
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History
Wed, 29 Apr 2026 12:15:00 +0000
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| Weaknesses | CWE-1025 | |
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threat_severity
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threat_severity
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Tue, 28 Apr 2026 12:15:00 +0000
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ssvc
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Mon, 27 Apr 2026 20:15:00 +0000
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Axios
Axios axios |
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| CPEs | cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:* | |
| Vendors & Products |
Axios
Axios axios |
Fri, 24 Apr 2026 18:15:00 +0000
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| 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. | |
| Title | Axios: XSRF Token Cross-Origin Leakage via Prototype Pollution Gadget in `withXSRFToken` Boolean Coercion | |
| Weaknesses | CWE-183 CWE-201 |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-24T18:03:29.924Z
Updated: 2026-04-27T17:35:41.883Z
Reserved: 2026-04-23T16:05:01.709Z
Link: CVE-2026-42042
Updated: 2026-04-27T17:35:19.552Z
Status : Analyzed
Published: 2026-04-24T18:16:31.293
Modified: 2026-04-27T20:05:27.500
Link: CVE-2026-42042