What is CVE-2026-42041?

CVE-2026-42041 is a medium-severity vulnerability in Axios, classified under Improper Authentication. CVSS score: 4.8/10. Published 2026-04-24.

How severe is CVE-2026-42041?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Auth bypass in Axios

CVE-2026-42041

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution to silently suppress all HTTP…

Vulnerability class: Broken Authentication

EPSS: 0.001 (35.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Axios — versions >= 1.0.0, < 1.15.1, < 0.31.1

Weakness classification (CWE)

CWE-287 — Improper Authentication
CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

References

https://github.com/axios/axios/security/advisories/GHSA-w9j2-pvgh-6h63 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-42041?: CVE-2026-42041 is a medium-severity vulnerability in Axios, classified under Improper Authentication. CVSS score: 4.8/10. Published 2026-04-24.
How severe is CVE-2026-42041?: Medium severity. CVSS v3 base score is 4.8 out of 10.