CVE-2026-42264

Name: CVE-2026-42264
Creator: NVD / NIST
Published: 2026-05-08T04:16:20.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2026-42264 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Axios is a promise based HTTP client for the browser and Node.js. From version 1.0.0 to before version 1.15.2, fFive config properties (auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser) in the HTTP adapter are read via direct property access without hasOwnProperty guards, making them exploitable as prototype pollution gadgets. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

Axios is a promise based HTTP client for the browser and Node.js. From version 1.0.0 to before version 1.15.2, fFive config properties (auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser) in the HTTP adapter are read via direct property access without hasOwnProperty guards, making them exploitable as prototype pollution gadgets. When Object.prototype is polluted by another dependency in the same process, axios silently picks up these polluted values on every outbound HTTP request. This issue has been patched in version 1.15.2.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

0.41%

33.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1321

Affected Software

Vendor	Product	Versions
Axios	Axios	>= 1.0.0, < 1.15.2

References

https://github.com/axios/axios/commit/47915144662f2733e6c051bdcb895a8c8f0586aaPatch
https://github.com/axios/axios/pull/10779Issue Tracking, Patch
https://github.com/axios/axios/releases/tag/v1.15.2Product, Release Notes
https://github.com/axios/axios/security/advisories/GHSA-q8qp-cvcw-x6jjExploit, Mitigation, Vendor Advisory
https://github.com/axios/axios/security/advisories/GHSA-q8qp-cvcw-x6jjExploit, Mitigation, Vendor Advisory

Timeline

Published: May 8, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-42264?

How severe is CVE-2026-42264?

CVE-2026-42264 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2026-42264?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-42264?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST