CVE-2026-42044
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk44th percentile - higher than 44% of all known CVEs
Summary
Axios versions 1.0.0 through 1.15.1 are vulnerable to a Prototype Pollution Gadget attack, allowing modification of JSON API responses, including privilege escalation and data manipulation.
Risk Assessment
An attacker can alter API responses, potentially leading to unauthorized access and data theft.
Recommendation
Update Axios to version 1.15.2.
Original NVD description (English source)
Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.15.2, he Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into surgical, invisible modification of all JSON API responses — including privilege escalation, balance manipulation, and authorization bypass. The default transformResponse function at lib/defaults/index.js:124 calls JSON.parse(data, this.parseReviver), where this is the merged config object. Because parseReviver is not present in Axios defaults, not validated by assertOptions, and not subject to any constraints, a polluted Object.prototype.parseReviver function is called for every key-value pair in every JSON response, allowing the attacker to selectively modify individual values while leaving the rest of the response intact. This vulnerability is fixed in 1.15.2.