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Vulnerabilities CVE-2026-25639

CVE-2026-25639

High
Open
TLP:CLEAR

Axios affected by Denial of Service via __proto__ Key in mergeConfig

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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.

Details

CVSS Score
7.5
EPSS Score
2.50%

83.2th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Confidence
90%
Published
Feb 9, 2026
Last Modified
Aug 12, 2026
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