Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Axios | Axios | < 0.31.1 |
Related Weaknesses (CWE)
References
- https://github.com/axios/axios/security/advisories/GHSA-pf86-5x62-jrwfExploitMitigationVendor Advisory
- https://github.com/axios/axios/security/advisories/GHSA-pf86-5x62-jrwfExploitMitigationVendor Advisory
FAQ
What is CVE-2026-42033?
CVE-2026-42033 is a vulnerability with a CVSS score of 7.4 (HIGH). 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 hasOwnPr...
How severe is CVE-2026-42033?
CVE-2026-42033 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42033?
Check the references section above for vendor advisories and patch information. Affected products include: Axios Axios.