Axios has prototype pollution read-side gadgets in HTTP adapter that allow credential injection and request hijacking

Description

Five config properties 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.

Recommendation

Update the axios package to the latest compatible version. Followings are version details:

• Affected version(s): >= 1.0.0, < 1.15.2
• Patched version(s): 1.15.2

References

• GHSA-q8qp-cvcw-x6jj
• CVE-2026-42264
• CWE-1321
• CAPEC-310
• OWASP 2021-A6

Related Issues

• axios has DoS & Header Injection via Prototype Pollution Read-Side Gadgets in axios merge functions - CVE-2026-44490
• Axios: Prototype Pollution Gadgets - Response Tampering, Data Exfiltration, and Request Hijacking - CVE-2026-42033
• Axios has a Patch Bypass: Proxy-Authorization Header Injection via Prototype Pollution — Incomplete Null-Prototype Fix - CVE-2026-44489
• axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge - CVE-2026-44495

You might also like:

How do hackers hack websites?

How to Secure your NodeJs Express Javascript Application - part 2

10 Secure Coding Best Practices to Follow in Every Project

Tags:

npm

axios