CVE-2026-42044— Axios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`

Axios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

CWE-915

Axios 安全漏洞

Axios是Axios开源的一款基于Promise（异步编程的一种解决方案）的HTTP客户端。 Axios 1.0.0版本至1.15.2之前版本存在安全漏洞，该漏洞源于默认transformResponse函数调用JSON.parse时使用合并配置对象中的parseReviver，当Object.prototype.parseReviver被污染时，攻击者可以选择性修改每个JSON响应中的值。

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