Vulnerability Description
Axios is a promise based HTTP client for the browser and Node.js. Prior to versions 0.30.3 and 1.13.5, the mergeConfig function in axios crashes with a TypeError when processing configuration objects containing __proto__ as an own property. An attacker can trigger this by providing a malicious configuration object created via JSON.parse(), causing complete denial of service. This vulnerability is fixed in versions 0.30.3 and 1.13.5.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Axios | Axios | < 0.30.3 |
Related Weaknesses (CWE)
References
- https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57Patch
- https://github.com/axios/axios/commit/d7ff1409c68168d3057fc3891f911b2b92616f9ePatch
- https://github.com/axios/axios/pull/7369Issue Tracking
- https://github.com/axios/axios/pull/7388Issue Tracking
- https://github.com/axios/axios/releases/tag/v0.30.3Release Notes
- https://github.com/axios/axios/releases/tag/v1.13.5ProductRelease Notes
- https://github.com/axios/axios/security/advisories/GHSA-43fc-jf86-j433ExploitVendor Advisory
FAQ
What is CVE-2026-25639?
CVE-2026-25639 is a vulnerability with a CVSS score of 7.5 (HIGH). Axios is a promise based HTTP client for the browser and Node.js. Prior to versions 0.30.3 and 1.13.5, the mergeConfig function in axios crashes with a TypeError when processing configuration objects ...
How severe is CVE-2026-25639?
CVE-2026-25639 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-25639?
Check the references section above for vendor advisories and patch information. Affected products include: Axios Axios.