Improperly Controlled Modification of Dynamically-Determined Object Attributes Affecting axios package, versions >=1.0.0 <1.15.2
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-JS-AXIOS-16299921
- published26 Apr 2026
- disclosed24 Apr 2026
- creditAugust829
Introduced: 24 Apr 2026
NewCVE-2026-42044 (opens in a new tab)How to fix?
Upgrade axios to version 1.15.2 or higher.
Overview
axios is a promise-based HTTP client for the browser and Node.js.
Affected versions of this package are vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes through the transformResponse and request serialization paths in the defaults configuration. An attacker can influence JSON parsing and request handling by supplying a crafted object with inherited parseReviver, responseType, transitional, env, or formSerializer properties, causing Axios to read attacker-controlled prototype values during response parsing or form encoding. This can lead to malformed response processing, unexpected parser behavior, and application-level data corruption or denial-of-service in code that passes untrusted config objects to Axios.