Insertion of Sensitive Information Into Sent Data Affecting axios package, versions <0.31.1>=1.0.0 <1.15.1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-AXIOS-16299478
- published26 Apr 2026
- disclosed24 Apr 2026
- creditUnknown
Introduced: 24 Apr 2026
CVE-2026-42042 (opens in a new tab)How to fix?
Upgrade axios to version 0.31.1, 1.15.1 or higher.
Overview
axios is a promise-based HTTP client for the browser and Node.js.
Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data through the request configuration handling in the adapters/xhr.js adapter and helpers/resolveConfig.js. An attacker can force the withXSRFToken option to a truthy non-boolean value, or pollute Object.prototype.withXSRFToken, by supplying a crafted request config that causes the XSRF header to be sent on cross-origin requests. When withXSRFToken is treated as a generic truthy value, the same-origin check is bypassed, and the browser reads the XSRF cookie and attaches it to an attacker-controlled destination. This exposes the user's XSRF token to a cross-origin endpoint, potentially enabling request forgery against the victim's authenticated session.