high7.4

CVE-2026-67316

axios is vulnerable to read-side prototype-pollution gadgets that can alter request construction when Object.prototype has already been polluted by a separate …

Impact

axios is vulnerable to read-side prototype-pollution gadgets that can alter request construction when Object.prototype has already been polluted by a separate vulnerability or dependency. In the bodyless method aliases (axios.get(), axios.delete(), axios.head(), axios.options()), inherited data is read via (config || {}).data before config normalization, causing an attacker-controlled body to be sent on requests that did not set one. Additional low-level paths, only reachable when calling exported adapters/helpers (e.g. lib/adapters/http.js, unsafe/helpers/resolveConfig.js) directly with plain configs and no own proxy or paramsSerializer, can inherit polluted proxy values (routing requests through an attacker-controlled proxy) or paramsSerializer values (attacker-controlled URL serialization). These low-level gadgets do not reproduce through normal high-level axios calls on 1.15.2+. The issue is fixed in axios 1.18.0 and 0.33.0.

Affected packages

Ecosystem	Package	Affected	Fixed in
npm	`axios`	>= 1.0.0, < 1.18.0	1.18.0

Affected products

Vendor	Product	Affected versions
Axios	Axios	before 0.33.0 from 1.0.0 before 1.18.0

Weakness classification

CWE-1321

Impact

Affected packages

Affected products

Weakness classification

References