Axios: Prototype Pollution Gadgets – Response Tampering, Data Exfiltration, and...

7.4 / 10

HIGH

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

Description

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, when Object.prototype has been polluted by any co-dependency with keys that axios reads without a hasOwnProperty guard, an attacker can (a) silently intercept and modify every JSON response before the application sees it, or (b) fully hijack the underlying HTTP transport, gaining access to request credentials, headers, and body. The precondition is prototype pollution from a separate source in the same process. This vulnerability is fixed in 1.15.1 and 0.31.1.

Basic Information

ID CVE-2026-42033

Source GitHub_M

Published Apr 24, 2026 at 17:36

Affected Product

Vendor axios

Product axios

Version >= 1.0.0, < 1.15.1

Affected Versions axios axios >= 1.0.0, < 1.15.1
axios axios < 0.31.1

CWE Classification

CWE-1321

References

github.com /axios/axios/security/advisories/GHSA-pf86-5x62-jrwf

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Axios: Prototype Pollution Gadgets – Response Tampering, Data Exfiltration, and Request Hijacking_CVE-2026-42033